{"title":"Used \u0026 Open Box Gear","description":"\u003cdiv\u003e\u003c\/div\u003e\n\u003cp\u003eFrom astrophotography cameras and scopes that unveil the wonders of distant galaxies to small telescopes that bring the moon's craters into breathtaking focus, our collection of pre-loved equipment is ready to accompany you on your celestial adventures.\u003c\/p\u003e\n\u003cp\u003eChoosing used not only saves you money but also gives these celestial companions a new lease on life, continuing to inspire and ignite passion for the universe. \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/eclipse-kit.myshopify.com\/pages\/sell-us-your-used-gear\"\u003eLooking to sell your gently used gear?\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"zwo-2-green-imaging-filter","title":"Used ZWO 2\" Green Imaging Filter","description":"\u003ch3\u003ePRICE DROP:  Was $50, now $40!!!\u003c\/h3\u003e\n\u003cp\u003eThis 2'' green filter was part of a set of 4 ZWO LRGB filters that we are selling individually.  It is in excellent condition, with clean glass and coatings.  Comes in its original jewel case.   \u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e   \u003c\/p\u003e\n\u003cp\u003eZWO's 2\" filter design boasts excellent 92% transmission at passband, great optical coatings, and good color separation.\u003c\/p\u003e\n\u003cp\u003eThe LRGB filters have a mechanical thickness of 5mm, with an additional 2.5mm added for the thread. The optical thickness measures in at 1.85mm. Each filter is more parfocal with a thickness of 1.9+\/-0.03 mm. As for the thread, this filter comes with a M48x0.75 thread.\u003c\/p\u003e\n\u003cp\u003eEach filter is fine-optically polished to reach an accuracy of 1\/4 wave and is equipped with anti-reflection coatings.  Additionally, the ZWO LRGB filters have precision off-brand blocking.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"table table--scope-row\" role=\"table\" tabindex=\"0\"\u003e\n\u003ccaption class=\"table__caption\"\u003eProduct specification\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eSKU Number\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"SKU Number\" role=\"gridcell\"\u003eZWO-LRGB2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eModel Number\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Model Number\" role=\"gridcell\"\u003eLRGB2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eSingle Filter, Set, or Accessory\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Single Filter, Set, or Accessory\" role=\"gridcell\"\u003eFilter Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Type\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Type\" role=\"gridcell\"\u003eRGB Sets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Size\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Size\" role=\"gridcell\"\u003e50.8mm (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Shape\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Shape\" role=\"gridcell\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Insert Style\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Insert Style\" role=\"gridcell\"\u003eThreaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Optical Thickness\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Optical Thickness\" role=\"gridcell\"\u003e1.85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr role=\"row\"\u003e\n\u003cth scope=\"row\" role=\"rowheader\"\u003e\n\u003cdiv class=\"table__heading-wrapper\"\u003eFilter Mechanical Thickness\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd class=\"data\" data-th=\"Filter Mechanical Thickness\" role=\"gridcell\"\u003e7.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!----\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":45435529756931,"sku":"U2405-SB-ZWOG2","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/446062110_1428019221410766_1718040286616408169_n.jpg?v=1716492855"},{"product_id":"used-qhy-polemaster","title":"Used QHY PoleMaster (no adapter)","description":"\u003cp\u003e\u003cstrong\u003ePRICE DROP!  Was $160, now $110!  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a QHY Polemaster in excellent condition, with clean optics.  It does not come with the tin box or the adapter to attach it to your mount, but does include the computer cable.  \u003c\/p\u003e\n\u003ch5\u003e   \u003c\/h5\u003e\n\u003ch5\u003e   \u003c\/h5\u003e\n\u003ch5\u003e   \u003c\/h5\u003e\n\u003ch5\u003e    \u003c\/h5\u003e\n\u003ch2\u003eFeatures\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePoleMaster\u003c\/strong\u003e -  \u003cstrong\u003eA High-Precision, Easy to Use Electronic Polar Scope\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eAs any seasoned astroimager would agree, achieving good polar alignment is not an easy task.  You may spend hours under precious dark sky trying to get that perfect polar alignment, but in the end you may not know whether good alignment has in fact been achieved.  Even after you have obtained good alignment, a gentle knock on the mount may send the polar alignment off and you may have no other choice but to start from scratch again.  With an hour here and an hour there trying to get polar aligned, it soon will be dawn and time to pack up the gear¡­\u003c\/p\u003e\n\u003cp\u003eThe PoleMaster is a great solution to this problem.  The PoleMaster is an innovative product pioneered by QHYCCD to relieve the pain of polar alignment.  Using PoleMaster and following a few simple, easy-to-follow, steps you can achieve perfect polar alignment in 2-3 minutes, with an accuracy of up to 30 arc seconds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBackground\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHow does PoleMaster work?   The idea is actually fairly simple.  You find out where the pole is, then determine the mechanical axis of rotation of your mount, and make the two coincide. While the idea is simple, it has never been implemented in a commercial product - until now. PoleMaster makes use of a super sensitive wide field imaging camera along the axis of RA to monitor the polar region in real time (it not only detects Polaris but also the dimmer stars surrounding Polaris).  From the positions of these stars PoleMaster can determine the position of the true pole and compare that to the mechanical axis of RA rotation.  Polar alignment is now a simple matter of moving the two centers of rotation so they overlap. Piece of cake!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn comparison with other polar alignment techniques, PoleMaster has the following advantage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003e Speed and convenience:\u003c\/em\u003e\u003c\/strong\u003e With PoleMaster you do not need to move the telescope to a specific place just to unblock the polar scope.  You do not need to kneel or contort your body to look through the polar scope.  You do not need to fully dark adapt just to see the pole star.  You do not need to level your mount.  You do not need to worry about the entering the date and time in your handset and figure out where to rotate the mount to coincide with the current pole star position.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003e Accuracy:\u003c\/em\u003e\u003c\/strong\u003e With a high precision camera, one can achieve accuracy not achievable with the naked eye.  The imaging camera in PoleMaster has a resolution of 30 arc second, so the best polar  alignment that can be achieved by PoleMaster is also in the order of 30 arc seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eWide angle view of the polar region\u003c\/em\u003e\u003c\/strong\u003e: A wide field of view of 11x8 degree makes it very easy to locate the pole star\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eEasy to install:\u003c\/em\u003e\u003c\/strong\u003e PoleMaster can be easily installed onto any equatorial mount through mount-specific adapters, even on mounts without a polar scope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eReal time polar alignment checking \/ adjustment\u003c\/em\u003e\u003c\/strong\u003e: By using PoleMaster you can monitor your polar alignment in real time. In the event that polar alignment is lost, it is now a simple matter to bring it back without having to start from scratch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003eThree star alignment no longer needed:\u003c\/em\u003e\u003c\/strong\u003e Once you are polar aligned, you will only need to perform one star alignment - a real time saver.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cem\u003ePerfect companion to single axis mounts:\u003c\/em\u003e\u003c\/strong\u003e When used with single (RA-only) axis mount, good polar alignment will minimize drift in the DEC axis therefore maximizing the performance of your mount.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" class=\"t1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eModel\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003ePoleMaster\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eField of View\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003e11 degrees x 8 degrees\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eSensitivity\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003e9th Magnitude\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eCoarse Adjustment\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003e5 arc minutes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eFine Adjustment\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003eUp to 30 arc seconds\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eComputer Interface\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003eMini USB2.0 Port\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eSoftware\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003eQHYCCD PoleMaster Calibration Software\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\"\u003e\n\u003cp class=\"p1\"\u003e106g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eInstallation\u003c\/h5\u003e\n\u003cp\u003eTo install your PoleMaster onto the mount, you will need an adaptor specifically made for your mount. The illustrations below use the Skywatcher NEQ6 mount adaptor as an example, but the instructions apply to adaptors made for other mounts.\u003c\/p\u003e\n\u003cp\u003eThe mount adaptor comes in two parts. There is a camera base disc which is attached to the back of the camera body; and there is a mount ring which is attached to the polar scope aperture of your mount. In use, the camera disc is attached to the mount ring by thumbscrews (the picture below shows the mount ring already attached to the mount, while the camera base disc is held in the hand).\u003c\/p\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":45753020219651,"sku":"U2407-SB-100061","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/450528647_457937337142158_2561742430471310512_n.jpg?v=1721244464"},{"product_id":"used-celestron-t-adapter-barlow-lens-universal-1-26","title":"Used Celestron T-Adapter\/Barlow Lens Universal - 1.25\"","description":"\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: This is a used Celestron t-adapter\/barlow lens in great condition with clean optics. Comes in its original box.  \u003c\/p\u003e\n\u003cp\u003e   \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eDescription\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Celestron Universal Barlow \u0026amp; T-Adapter is three accessories in one!\u003c\/li\u003e\n\u003cli\u003e2X Barlow:  Use during visual observing to double the magnification of every 1.25” eyepiece you own\u003c\/li\u003e\n\u003cli\u003ePrime Focus Photography: Use the T-Adapter portion of this accessory to transform your telescope into a giant telephoto lens\u003c\/li\u003e\n\u003cli\u003eTele-Extended Photography:  Use the T-Adapter with Barlow to get double the magnification of prime focus mode \u003c\/li\u003e\n\u003cli\u003eT-threads accept camera brand specific T-Ring (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis 1.25” accessory can be used three ways: as a 2X Barlow for visual use, as a prime focus T-adapter, or as a “Barlowed” T-adapter for double the magnification and the benefit of extra inward focus travel.\u003c\/p\u003e\n\u003cp\u003eThe Universal Barlow \u0026amp; T-Adapter can be used as a 2X Barlow right out of the box. Insert any 1.25” eyepiece into the chamber and you’ll enjoy double the magnification, while retaining all the eye relief of the inserted eyepiece.\u003c\/p\u003e\n\u003cp\u003eThe Celestron Universal Barlow \u0026amp; T-Adapter can also be used for prime focus photography, which means you use the telescope as a photographic lens—a very big photographic lens! Just unscrew the bottom section of the unit to remove the Barlow and slide the chrome barrel into the telescope’s 1.25” focuser or adapter. Lock it firmly in place with the focuser or adapter thumbscrew. T-threads on the top of the adapter screw into a T-Ring (sold separately) that is designed to attach to the brand-specific mounting flange of your DSLR camera.\u003c\/p\u003e\n\u003cp\u003ePlease note that some telescopes, especially “fast” refractors and Newtonians, may not have enough focus travel to allow the photographic image to come to focus when used in prime focus mode. In these instances, adding the Barlow to the T-Adapter will allow the telescope to reach focus. In “Tele-Extended” mode, the Barlow doubles the focal length and f\/ratio of your telescope, resulting in an image on the sensor or film plane that is twice the size of a prime focus image.\u003c\/p\u003e\n\u003cp\u003ePrime focus and tele-extended photography are popular for short exposure images of terrestrial objects as well as celestial objects like the Moon.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":45911958814979,"sku":"U2409-AE-93640","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/458140008_532919005799859_4721049423410406864_n.jpg?v=1725649186"},{"product_id":"used-celestron-dew-heater-ring-6","title":"Used Celestron Dew Heater Ring, 6\"","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used Celestron 6\" dew heater ring in excellent condition. It includes all accessories and looks like it was hardly, if ever taken out of the box\/used. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eNote: A separate dew heater controller and power source are required to utilize the heater ring. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHeater ring provides the most efficient heating directly to the corrector lens to prevent the formation of dew\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePermanently mounts to your existing telescope tube for a seamless look—plus, you’ll never forget to bring it with you\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIntegrated thermistor continuously monitors the temperature of the corrector lens when used with the Celestron Smart DewHeater Controllers.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRigid, lightweight, and durable aluminum construction\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncluded storage clip and cable management clip keep your cables organized\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope. This must-have accessory will improve your observing or imaging nights year-round. The Dew Heater Ring permanently mounts to your Celestron Schmidt-Cassegrain optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHow it works\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Dew Heater Ring replaces the plastic retaining ring on your Schmidt corrector lens for efficient heating across the lens. The ring is constructed of lightweight, durable aluminum. Its rigid frame supports the cable circuity and the telescope's Schmidt corrector lens. Unlike other heating bands or strips that inefficiently heat the lens cell to warm the glass, the Celestron Dew Heater Ring heats the corrector glass directly, providing the most efficient transfer of heat to prevent dew formation.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSimply plug the ring into an external 12V DC power source for consistent, continuous heat that will prevent dew from forming even under heavy dew conditions. The Dew Heater Ring features two storage clips to keep the power and thermistor jacks secure when not in use while accommodating the telescope's dust cover.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Dew Heater Ring also comes with a cable management clip that connects to the telescope's front cell. Corral the power and thermistor jack to prevent them from dangling and reduce unwanted pulls on the cable connection to the rings.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003eThe Dew Heater Ring comes complete with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDew Heater Ring\u003c\/li\u003e\n\u003cli\u003eCable management clip\u003c\/li\u003e\n\u003cli\u003ePower jack extension cable\u003c\/li\u003e\n\u003cli\u003ePaper installation shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eEnhance your setup\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTo achieve the highest level of dew prevention while maximizing power efficiency, we strongly recommend pairing the Dew Heater Ring with a Smart DewHeater Controller (sold separately). The controller uses the ring's built-in thermistor and its internal environmental sensor to provide just the right amount of heat to the corrector to prevent dew based upon the ambient temperature, ambient humidity, and temperature of the Schmidt corrector, which can dramatically reduce the ring’s power draw, greatly increasing battery life. The ring also includes an extension cable for connecting the ring directly to one of the controllers’ heater output ports, or to a third-party controller’s heater output port. (Note: the ring’s integrated thermistor is only compatible with the Celestron Smart DewHeater Controllers).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe also recommend adding a dew shield to your setup. While not mandatory, a shield will cut down on the amount of power the Dew Heater Ring needs to keep the optics clear.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack:\u003c\/td\u003e\n\u003ctd\u003e12V DC barrel connector, 5.5mm\/2.1mm, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing construction:\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack extension cable:\u003c\/td\u003e\n\u003ctd\u003e6\" long, 12V DC, 5.5mm\/2.1mm barrel connector on one end, male RCA connector on other end, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermistor Jack:\u003c\/td\u003e\n\u003ctd\u003e2.5mm audio jack, compatible with Celestron SmartHeat Dew Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e5\" SCT\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 536px;\" class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 141.031px;\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd style=\"width: 377.969px;\"\u003e7 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable data-mce-fragment=\"1\" style=\"width: 536px;\" id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003ctbody data-mce-fragment=\"1\" id=\"spec-block-1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 140.922px;\"\u003eCompatibility:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" style=\"width: 378.078px;\"\u003e5\" Schmidt-Cassegrain (made after 2006)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003e6\" SCT\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable id=\"product-specs-list\" class=\"table-open\" style=\"width: 536px;\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 131.938px;\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd style=\"width: 387.062px;\"\u003e12 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 536px;\" class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 136.75px;\"\u003eCompatibility:\u003c\/td\u003e\n\u003ctd style=\"width: 381.25px;\"\u003e6\" Schmidt-Cassegrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003e8\" SCT\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable id=\"product-specs-list\" class=\"table-open\" style=\"width: 536px;\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 132.812px;\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd style=\"width: 386.188px;\"\u003e20 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 536px;\" class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 132.703px;\"\u003eCompatibility:\u003c\/td\u003e\n\u003ctd style=\"width: 383.297px;\"\u003e8\" Schmidt-Cassegrain (made after 2006), EdgeHD, Rowe-Ackermann Schmidt Astrograph (RASA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003e9.25\" SCT\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 536px;\" class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 132.844px;\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd style=\"width: 386.156px;\"\u003e24 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 536px;\" class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr style=\"height: 18.125px;\"\u003e\n\u003ctd style=\"width: 132.453px; height: 18.125px;\"\u003eCompatibility:\u003c\/td\u003e\n\u003ctd style=\"width: 382.547px; height: 18.125px;\"\u003e9.25\" Schmidt-Cassegrain, EdgeHD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003e11\" SCT\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 536px;\" class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 131.094px;\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd style=\"width: 387.906px;\"\u003e30 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 536px;\" id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 131.656px;\"\u003eCompatibility:\u003c\/td\u003e\n\u003ctd style=\"width: 382.344px;\"\u003e11\" Schmidt-Cassegrain (made after 2006), EdgeHD, Rowe-Ackermann Schmidt Astrograph (RASA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003e14\" SCT\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable id=\"product-specs-list\" class=\"table-open\" style=\"width: 536px;\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 136.891px;\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd style=\"width: 379.109px;\"\u003e52 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"table-open\" id=\"product-specs-list\" style=\"width: 536px;\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 139px;\"\u003eCompatibility:\u003c\/td\u003e\n\u003ctd style=\"width: 378px;\"\u003e14\" Schmidt-Cassegrain (made after 2006), EdgeHD, Rowe-Ackermann Schmidt Astrograph (RASA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47203883909379,"sku":"U2509-WK-94050","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/Unknown_562593c9-9a31-4817-95d0-045827cb0530.jpg?v=1758065631"},{"product_id":"used-zwo-nikon-lens-short-adapter-for-zwo-1-25-31mm-36mm-electronic-filter-wheel","title":"Used ZWO Nikon Lens Short Adapter for ZWO 1.25”\/31mm\/36mm Electronic Filter Wheel","description":"\u003cp class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003eThis is a ZWO short adapter for a Nikon in excellent condition, with no marks, dings, sleeks, or scratches.  It comes in its original box.  You may need a \u003ca rel=\"noopener\" href=\"https:\/\/milehighastro.com\/products\/used-zwo-filter-drawer-for-nikon-lens\" target=\"_blank\"\u003eZWO Filter Drawer for Nikon\u003c\/a\u003e to use this with an EFW.  At the time of listing, we do have \u003ca rel=\"noopener\" href=\"https:\/\/milehighastro.com\/products\/used-zwo-filter-drawer-for-nikon-lens\" target=\"_blank\"\u003ea used one\u003c\/a\u003e for sale.  \u003c\/p\u003e\n\u003cp class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003e\u003cspan\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003ch1 class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cdiv class=\"product info description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cp\u003eThis ZWO Nikon Lens Short Adapter for ZWO 1.25”\/31mm\/36mm Electronic Filter Wheels allows you to connect small format ZWO cameras with a ZWO 1.25\"\/31mm\/36mm filter wheel to a Nikon F-mount lens. Please see the full compatibility list below to ensure this adapter is correct for your camera.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThere are four Nikon lens to ZWO camera adapters:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/agenaastro.com\/zwo-filter-drawer-for-nikon-lens-fd-nikon.html\"\u003eZWO Filter Drawer for Nikon Lens # FD-Nikon\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e- best for color cameras with use of a 2\" filter\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/agenaastro.com\/zwo-nikon-lens-adapter-for-2-electronic-filter-wheel-efw2-nikon.html\"\u003eZWO Nikon Lens Adapter for ZWO 2\" Electronic Filter Wheel # EFW2-Nikon\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e- best for large format monochrome cameras that use a 2\" filter wheel\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/agenaastro.com\/zwo-nikon-lens-short-adapter-for-electronic-filter-wheel-efw-nikon-ii.html\"\u003eZWO Nikon Lens Short Adapter for ZWO 1.25”\/31mm\/36mm Electronic Filter Wheel # EFW-NIKON-II\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e- best for small format monochrome cameras that use a 1.25\"\/31mm\/36mm filter wheel\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e(this product)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/agenaastro.com\/zwo-t2-thread-to-nikon-lens-adapter-for-all-asi-cameras-nikon-t2-ii.html\"\u003eZWO T2 Thread to Nikon Lens Adapter for all ASI Cameras # NIKON-T2-II\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e- best for connecting most ZWO cameras without the need for quickly changing filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility with Nikon Lenses:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis adapter is compatible with Nikon F mount (DSLR) lenses only. It is not compatible with Nikon mirrorless lenses. NOTICE: G-type Nikkor lenses need to find some way to open the aperture up (for example, by using an orthodontic rubber band to hold the little aperture tab on the lens in the “open” position.)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility with ZWO Cameras:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis ZWO adapter allows you to attach a Nikon F-mount lens to select ZWO cameras that have a backfocus of 6.5mm via ZWO's Electronic Filter Wheels (EFW). This includes all cooled (Pro model) cameras that have a 4\/3\" sensor or smaller. It has a female Nikon F-mount bayonet mount on the lens side and a male T\/T2 thread on the other side which connects to the EFW. The EFW, in turn, connects to the ZWO camera.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility with ZWO Filter Wheels:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/agenaastro.com\/zwo-eight-position-electronic-filter-wheel.html\"\u003eZWO 8-Position Electronic Filter Wheel for 1.25\" or 31mm Filters # EFW8-125\/31\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/agenaastro.com\/zwo-5-position-electronic-filter-wheel-for-1-25-or-31mm-filters-efwmini.html\"\u003eZWO 5-Position Electronic Filter Wheel for 1.25\" or 31mm Filters # EFWMINI\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/agenaastro.com\/zwo-7-position-electronic-filter-wheel-for-36mm-unmounted-filters-version-ii-efw7-36.html\"\u003eZWO 7-Position Electronic Filter Wheel for 36mm Unmounted Filters (Version II) # EFW7-36-II\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eThis product cannot be used with 2\" EFWs and you will need\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/agenaastro.com\/zwo-nikon-lens-adapter-for-2-electronic-filter-wheel-efw2-nikon.html\"\u003eEFW2-Nikon\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eif using a 2\" filter wheel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eHow to Connect the Nikon Lens Short Adapter for ZWO 1.25\"\/31mm\/36mm EFWs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/313.jpg\" alt=\"3\" data-num=\"0\" id=\"#img0\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIt is common for the silver plate on one side of this adapter to have several light scuff marks right out of the box. These items are new as received from ZWO, and these marks are purely cosmetic.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product info ca_extra_info\"\u003e\n\u003ch4\u003eOther Information\u003c\/h4\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cdiv class=\"product attribute ca_extra_info\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cul\u003e\n\u003cli\u003eCountry of Manufacture: China\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":47208357069059,"sku":"U2509-MC-ZWO-NIKON-EFW","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/3e8add24-a561-4ed9-a8d9-04637e152744.jpg?v=1758141935"},{"product_id":"used-sirius-optics-polarizer-filter-2","title":"Used Sirius Optics Polarizer Filter, 2\"","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used Sirius Optics polarizer filter. This is 2\" in diameter and has 48mm thread size. This is in excellent condition with clean optics and little signs of use. It includes the jewel case but does not come with a box. \u003c\/p\u003e","brand":"Sirius Optics","offers":[{"title":"Default Title","offer_id":47296008323331,"sku":"U2509-DS-SOPOLAR","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/7839EDC6-E108-4C6C-AFC7-10FEB0DD448A.png?v=1759442487"},{"product_id":"brand-new-celestron-visual-back-for-edgehd-telescopes","title":"Brand New Celestron Visual Back for EdgeHD Telescopes","description":"\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003eThis is a brand new Celestron Visual Back for EdgeHD telescopes, included with the purchase of an EdgeHD.  This one was \"returned\" to us from a customer who purchased a new EdgeHD for photographic use, and had no need for this visual back for, of course,  visual use.  It includes the dust cap.  \u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47326765908227,"sku":"U2510-CC-51713-2","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/21b84835-61a0-41f4-badf-44c45641b0f6.jpg?v=1760482039"},{"product_id":"used-celestron-radial-guider-2","title":"Used Celestron Radial Guider","description":"\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: This is a used Celestron radial guider in good condition. The prism is relatively clean and there are very few markings on the body. This includes the manual, but does not include its original box. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e: \u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eSpecifically for use in prime focus, deep-sky imaging or astrophotography with Schmidt-Cassegrain telescopes, the Radial Guider is compact and sleek in design.  This accessory makes it possible to simultaneously photograph and guide through the optical tube assembly of your telescope.  The radial guider also eliminates the problem of differential flexure, because you're both guiding and photographing through the telescope.\u003c\/p\u003e\n\u003cp\u003eThe radial guider is compatible with Celestron's C5, C8, C9, C11 and C14 telescopes and comes with a unique prism angle adjustment screw.  It must be used with a guiding eyepiece, camera T-mount and drive corrector(\u003ci\u003edual axis is preferrable\u003c\/i\u003e).  Primarily for use with catadioptric telescopes, it also works on refractor telescopes having adequate back focus.\u003c\/p\u003e\n\u003cp\u003eThis guider is a tremendous improvement over conventional off-axis guiders.  Not only is the angle of the prism tunable, but it also maintains a fixed rigid camera orientation while still offering users the freedom to move the guiding eyepiece radially about 135°.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47372215320835,"sku":"U2510-LS-94176","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/e4bb2f7f-d5f7-43ac-aa81-deea498987e4.jpg?v=1761694502"},{"product_id":"used-buckeye-stargazer-eaf-mounting-bracket","title":"Used Buckeye Stargazer EAF Mounting Bracket","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used Buckeye Stargazer EAF mounting bracket for ZWO Helical focuser on an OAG. It is in great condition though it is missing the focus gear along with the m4x10mm screws it would have typically come with. This comes in the original box. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003ch3\u003eImportant Notice About EAF Shaft Compatibility:\u003c\/h3\u003e\n\u003cp\u003eThe ZWO EAF-STD and EAF-5V (both of which have been discontinued) had a 5mm motor shaft which many 3rd party accessories are currently compatible with. However, the new EAFN and EAF-PRO models now feature a smaller 4mm diameter shaft making compatibility with current belt driven and gear driven accessories unknown.\u003c\/p\u003e\n\u003cp\u003eIt is possible that the manufacturer of this item might offer a 4mm version compatible with the EAFN and EAF-PRO in the future, but we have no idea at this time. Hence, users wanting to use this accessory with an EAFN or EAF-PRO should NOT buy this adapter, unless you plan to use it with the discontinued EAF-STD or EAF-5V models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note that this is a 3d printed plastic part.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis bracket # EAF-ZWOHelical-OAG allows you to mount a ZWO Electronic Automatic Focuser (EAF) to control your ZWO Helical focuser on ZWO's OAG-L\/OAG-L-M68.\u003c\/p\u003e\n\u003cp class=\"text-muted\"\u003eThe system consists of two parts: a bracket for your telescope and a coupler that attaches the EAF onto the focuser pinion. Connections are held securely with stainless steel M3 set screws. Where necessary, bracket mounting screws are provided. The ZWO supplied M4 screws are used to attach the EAF to the bracket. Note that the user will need to have a hex key\/Allen key for the M3 set screws (not provided).\u003c\/p\u003e\n\u003cp class=\"text-muted\"\u003ePrinted in black carbon fiber PETG filament.\u003c\/p\u003e\n\u003cp class=\"text-muted\"\u003e \u003c\/p\u003e\n\u003cp class=\"text-muted\"\u003eManual: https:\/\/agenaastro.com\/mwdownloads\/download\/link\/id\/382 \u003c\/p\u003e\n\u003cp class=\"text-muted\"\u003e \u003c\/p\u003e\n\u003cp class=\"text-muted\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/zwo-eaf-helical-oag_1.webp?v=1764109589\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"text-muted\"\u003e \u003c\/p\u003e","brand":"Buckeye Stargazer","offers":[{"title":"Default Title","offer_id":47478275997955,"sku":"U2504-XXX-EAF-ZWOHelical-OAG","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/8B09D58C-40EC-42E7-B21D-E5EBE14D5645.png?v=1764109800"},{"product_id":"used-hutech-idas-nebula-booster-nbz-48mm-filter-4","title":"Used Hutech IDAS Nebula Booster NBZ 48mm Filter, 2\"","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a Hutech IDAS Nebula Booster filter in fair condition. The optics have some smudging and dust that we have not been able to remove; see the photos.  You may have better luck.  This includes the jewel case.  We have reduced the price accordingly to account for this condition issue.  \u003c\/p\u003e\n\u003cp\u003e(Any dust you see in the photos is removable - it seems that these filters develop an electrostatic charge such that the dust in the air is just attracted to the filter.)  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cb\u003eThe IDAS Nebula Booster 48mm Filter\u003c\/b\u003e\u003cspan\u003e is designed to enhance the contrast of Ha (Hydrogen Alpha) and OIII (Oxygen II) emission nebula while accommodating the filter spectral shift when used with modern fast optical systems. This dual-band filter is ideal for one-shot color cameras, as well as mono-color astronomical cameras.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eProprietary IDAS Sophisticated Optics Technology\u003c\/h3\u003e\n\u003cp\u003eIon-Gun Assist Deposition (IGAD) coating technology is used by IDAS for these astronomical filters. This results in superior filters with robust coatings and long-term spectral stability, even with temperature and humidity extremes. This stability is especially important for bandpass curves with steep slopes (narrowband filters). This technology helps to virtually eliminate bandpass shifts from the +\/-3 or 4nm typical of standard coating filters.\u003c\/p\u003e\n\u003cp\u003eThe Multi Bandpass Technology (MBT) is used in conjunction with the IGAD hard-coating technology to further elevate IDAS filters. This technology allows IDAS to create very complicated filters for astronomical use.\u003c\/p\u003e\n\u003cp\u003eUltra Fine Polish (UFP) Finishing really sets IDAS filters apart from the competition. They are polished twice as long as is typical for optical glass. In combination with the use of high-quality substrate glass, no scratches, bubbles, or other defects are visible even under microscopic inspection.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/NBX_in_cone_Ha-part_480x480_png.webp?v=1748555939\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/NBX_in_cone_OIII-part_480x480_png.webp?v=1748555944\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis filter has ideal flat-top bandpass, as well as in-band transmission. The off-center bandpass accommodates off-axis rays for fast optics (up to f\/2). The steep bandpass edges help to minimize internal reflections. It is able to fully block NIR up to 1200nm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"heading capitalize\"\u003eSpecifications\u003c\/p\u003e\n\u003cdiv class=\"specs-table\"\u003e\n\u003ctable class=\"specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Shape\u003c\/td\u003e\n\u003ctd class=\"right\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Size\u003c\/td\u003e\n\u003ctd class=\"right\"\u003e48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Thickness\u003c\/td\u003e\n\u003ctd class=\"right\"\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Astro-Hutech","offers":[{"title":"Default Title","offer_id":47512351637763,"sku":"U2512-GM-HU-NBZ-48","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/47fc05b6-aa20-4254-b940-770227e195b9.jpg?v=1764890447"},{"product_id":"used-celestron-t-adapter-for-edgehd-8-missing-flange","title":"Used Celestron T-Adapter for EdgeHD 8\" - missing bottom flange","description":"\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: This is a Celestron t-adapter for an 8\" EdgeHD that is missing its bottom flange.  See the photos - the second photo shows the t-adapter that has its bottom flange on the right. This one is the one on the left of that second photo that doesn't have it.  Which is why this is only $10.  There are no returns on this item.  \u003c\/p\u003e\n\u003cp\u003eOtherwise, it is in very good condition with only some minor signs of normal use. \u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e   \u003c\/p\u003e\n\u003cp\u003e    \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eT-Adapter for 8” EdgeHD optical tube threads onto the rear cell\u003c\/li\u003e\n\u003cli\u003eThis T-Adapter allows you to attach your DSLR camera to the prime focus of your EdgeHD telescope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eT-Adapter for 8” EdgeHD optical tube threads onto the rear cell.\u003c\/p\u003e\n\u003cp\u003eThis T-Adapter allows you to attach your APS-C or Full Frame DSLR camera to the prime focus of your EdgeHD telescope. This arrangement is used for terrestrial photography and short exposure lunar and planetary photography. It can also be used for long exposure deep-sky photography when using a separate guide scope.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Both a T-Adapter and T-Ring are required to mount a DSLR camera to your instrument.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47518205608195,"sku":"U2511-XXX-93644-1","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/e203422a-2ca2-46ce-8afe-7ed3a9fbe079.jpg?v=1764970568"},{"product_id":"used-celestron-aluminum-dew-shield-and-cap-for-c9-28","title":"Used Celestron Aluminum Dew Shield and Cap for C9.25","description":"\u003cp\u003eThis is a Celestron aluminum dew shield for the C9.25 that is in very good condition.  There is a tiny nick in the cap that is cosmetic only and does not affect the fit.  See the photos.  We have taken this condition issue into consideration with the pricing.  Enjoy the savings!  \u003c\/p\u003e\n\u003cp\u003eWe do not have the shipping boxes for this, so this is for in-store pickup only. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTh\u003cspan data-mce-fragment=\"1\"\u003eis\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAluminum Dew Shield with Cover Cap\u003cspan\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eis\u003c\/span\u003e an essential accessory that protects\u003cspan\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003ethe\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003etube in the field. The dew shield reduces radiative cooling of the Schmidt corrector lens to the night sky, keeping the lens below the dew point longer\u003cspan\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eand \u003c\/span\u003epreventing dew\u003cspan\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003efrom forming \u003c\/span\u003eon the lens.\u003cspan\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eT\u003c\/span\u003ehe Aluminum Dew Shield\u003cspan data-mce-fragment=\"1\"\u003e also\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eincreases image contrast by blocking stray light from entering the telescope for better viewing and astroimaging. Use the Aluminum Dew Shield on your Cassegrain Schmidt-Cassegrain telescope tube confidently, knowing it was created for your exact instrument.  \u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHelps prevent dew formation on the Schmidt corrector lens\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePrevents off-axis glare from entering the optical system\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRigid body with a velvet-lined interior surface to reduce stray light\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTwo adjustable clips for easy installation and disassembly\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCable management at the base of the shield—perfect for using the Fastar\/Hyperstar configuration or using in conjunction with the Celestron Dew Heater Rings\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAn included cover cap keeps your telescope free from dust when not in use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eConstruction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe exterior of the dew shield is a rigid, aluminum cylinder that will not fold, flex, or deform. Inside, a velvet-lined interior absorbs any additional stray light and excess moisture, creating optimal contrast when viewing and imaging. Attach the dew shield to your telescope tube with the two adjustable clips to ensure a snug fit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe’ve also constructed the cover cap from durable yet lightweight aluminum. When your telescope is not in use, place the cover cap on your dew shield to protect your Schmidt corrector from stray dust particles. The cover cap also offers you the ability to quickly and easily acquire dark frames for imaging.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf you’re an astroimager who enjoys using your Schmidt-Cassegrain in the Fastar\/Hyperstar configuration, you’re probably used to running cables out the front of the dew shield. Simplify and streamline your setup with the Aluminum Dew Shield’s integrated cable management slot at the base. This slot gives you an easy way to corral essential cables (like the ones for our Dew Heater rings) without potentially allowing light pollution to leak in. Also, there are cutouts to accommodate dovetail rails on the top and bottom of the telescope tube, ensuring a good fit regardless of the configuration.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e6\" SCT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFits 6” Schmidt-Cassegrain tubes. \u003c\/p\u003e\n\u003ctable id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e1.2 lbs (.54 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions:\u003c\/td\u003e\n\u003ctd\u003e7.5\" (190.5mm) diameter x 9.5\" (241.3mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable slot dimensions:\u003c\/td\u003e\n\u003ctd\u003e1.25\" (31.75mm) wide x 1.5\" (38.1mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover cap weight:\u003c\/td\u003e\n\u003ctd\u003e3.2 oz (90.7 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e8\" SCT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFits 8” Schmidt-Cassegrain (made after 2006), EdgeHD, and RASA telescope tubes.\u003c\/p\u003e\n\u003ctable class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e1.8 lbs (.81 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions:\u003c\/td\u003e\n\u003ctd\u003e9.5\" (241.3mm) diameter x 12.4\" (314.96mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable slot dimensions:\u003c\/td\u003e\n\u003ctd\u003e1.25\" (31.75mm) wide x 1.5\" (38.1mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover cap weight:\u003c\/td\u003e\n\u003ctd\u003e9.6 oz (272.15 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cbr\u003e\u003cstrong\u003e9.25\" SCT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFits 9.25” Schmidt-Cassegrain and EdgeHD telescope tubes\u003c\/p\u003e\n\u003ctable class=\"table-open\" id=\"product-specs-list\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e2.6 lbs (1.18 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions:\u003c\/td\u003e\n\u003ctd\u003e11\" (279.4mm) diameter x 14.4\" (365.76mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable slot dimensions:\u003c\/td\u003e\n\u003ctd\u003e1.25\" (31.75mm) wide x 1.5\" (38.1mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover cap weight:\u003c\/td\u003e\n\u003ctd\u003e12.8 oz (362.87 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e11\" SCT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFits 11” Schmidt-Cassegrain (made after 2006), EdgeHD, and RASA telescope tubes.\u003c\/p\u003e\n\u003ctable id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e3.4 lbs (1.54 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions:\u003c\/td\u003e\n\u003ctd\u003e12.9\" (327.66mm) diameter x 17\" (431.8mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable slot dimensions:\u003c\/td\u003e\n\u003ctd\u003e1.5\" (38.1mm) wide x 2\" (50.8mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover cap weight:\u003c\/td\u003e\n\u003ctd\u003e16 oz (453.6 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e14\" SCT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFits 14” Schmidt-Cassegrain (made after 2006) and EdgeHD, and 36cm RASA telescope tubes.\u003c\/p\u003e\n\u003ctable id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e5.4 lbs (1.18 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions:\u003c\/td\u003e\n\u003ctd\u003e16.3\" (414.02mm) diameter x 20.5\" (520.7mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable slot dimensions:\u003c\/td\u003e\n\u003ctd\u003e1.5\" (38.1mm) wide x 2\" (50.8mm) long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover cap weight:\u003c\/td\u003e\n\u003ctd\u003e22.4 oz (635.02 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47583248810243,"sku":"U2512-TS-94022","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/e40836c1-e789-4569-aa7e-d026ecf4883b.jpg?v=1766871140"},{"product_id":"used-zenithstar-81-f-6-9-doublet-apo","title":"Used ZenithStar 81 Doublet APO wth 0.8x FFR","description":"\u003cp\u003eThis is a ZenithStar 81 in excellent condition.  Both the optics and body are clean.  There is a tiny spot on the edge of the objective; you can see it in the photos in between the \"c\" in synthetic and the \"f\" in fluorite. \u003c\/p\u003e\n\u003cp\u003eThis is a well-used scope; the Vixen dovetail bar is chewed up a bit, the focus tube has a straight line mark from being moved in and out.  See the photos.  Obviously, these cosmetic issues will not affect the performance of the scope. \u003c\/p\u003e\n\u003cp\u003eThis also includes the 0.8x Flat 6AIII focal reducer\/field flattener (a $269 value), which is in excellent, clean condition. \u003c\/p\u003e\n\u003cp\u003eThis comes in its original soft-lined foam case, although the \u003cmeta charset=\"utf-8\"\u003efoam in the original WO case has been replaced.  It also includes a WO M63 camera rotator (a $129 value).  This item can be shipped.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe William Optics ZenithStar 81 mm aperture Doublet APO Refactor is an extremely versatile telescope, ideal for both astrophotography and general photography. It provides a sharp image for any DSLR, and pristine clarity for both visual observers and astrophotographers. This scope series is even capable of handling full frame sensors.\u003c\/p\u003e\n\u003cp\u003eThis air-spaced 81 mm series utilizes FPL-53 glass to provide clear detail and sharp colors. Similar to past models, this series also includes a 10:1 dual speed, 2.5-inch, R\u0026amp;P ultra-robust focuser. \u003c\/p\u003e\n\u003cp\u003e William Optics has crafted this series as an f\/6.9 for respectable speed. On top of that, each scope in the series comes with a built-in, removable, clear Bahtinov mask for convenience in focusing. \u003c\/p\u003e\n\u003cp\u003eThese OTAs include a dual-side dovetail compatible with Vixen and Arca Swiss stylings.\u003c\/p\u003e\n\u003ch5\u003eWhat's in the box\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e0.8x Flattener\/Reducer\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eMounting Rings \u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eCNC Carry Handle Bar \u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e2.5\" Rack \u0026amp; Pinion Focuser \u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eDual Sided Dovetail \u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eBahtinov Mask\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eCarry Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/center\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 81mm\u003c\/li\u003e\n\u003cli\u003eGlass:  FPL-53\u003c\/li\u003e\n\u003cli\u003eFocal Length: 559mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/6.9\u003c\/li\u003e\n\u003cli\u003eFocuser: 2.5\" Rack \u0026amp; Pinion Dual Speed Focuser\u003c\/li\u003e\n\u003cli\u003eTube Length: 460mm (Fully Retracted) and 560mm (Fully Extended)\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 3.53kg (7.78 lb)\u003c\/li\u003e\n\u003cli\u003eImage Circle:  Full frame\u003c\/li\u003e\n\u003cli\u003eWarranty:  William Optics 2-year\u003c\/li\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":47608097669379,"sku":"U2601-BH-A-Z81RD-AP","price":799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/d80abbf4-beb3-4759-98dd-f404e6f1165a.jpg?v=1767818204"},{"product_id":"open-box-redcat-71-wifd","title":"Open Box RedCat 71 WIFD","description":"\u003ch3 style=\"text-align: left;\"\u003eOpen Box display unit. Like new with warranty. Small marks on the dovetail bar consistent with use on displaying the unit on mounts in the store showroom. Clean optics, and a great deal.\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003eRedCat 71 WIFD\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/Redcat-71-WIFD-side-1.webp?v=1765573681\" alt=\"\"\u003eThe William Optics WIFD 71 mm APO Astrograph is a premier tool for astrophotographers. The RedCat WIFD 71 provides color-free apochromatic performance. With 4 elements in 3 groups (2-1-1- configuration), the 71 mm RedCat Petzval refractor is designed with a doublet made of FPL-53 glass up front, a single central element, and a single rear lens to provide a flat image plane without any need for an additional flattener.\u003c\/p\u003e\n\u003cp\u003eWilliam Optics designed this refractor with excellent color correction and pinpoint stars, even at the edge of the 45 mm image circle.\u003c\/p\u003e\n\u003ch3\u003eBahtinov Mask\u003c\/h3\u003e\n\u003cp\u003eIncluded with this William Optics RedCat telescope is a Bahtinov focusing mask. The Bahtinov mask is a great tool for astrophotography and modifying focus. With William Optics quality, the Innovative Bahtinov Mask Cover will help astrophotographers reach the best focus when capturing those wonderful celestial photos.\u003c\/p\u003e\n\u003ch3\u003ePatented WIFD Focuser\u003c\/h3\u003e\n\u003cp\u003eThis new focuser design includes the patented William Optics center focuser with precise internal sliding of fixed optics to prevent image shift. The integrated position viewing window on the focuser provides instant verification of the graduated numerical display. The smooth rack-and-pinion design is incorporated into the focuser to provide super-fine adjustability for critical focus. The internal movement of the optical elements is protected from the elements and cannot come out of alignment. The redistribution of weight allows for better balance during imaging sessions.\u003c\/p\u003e\n\u003ctable class=\"notion-collection-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eLens Type\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e4 Elements Petzval Design\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eFocal Length\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e350 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eDiameter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e71 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eFocal Ratio\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003ef\/4.9\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eImage Circle\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e48 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eFocuser\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-purple\"\u003eWIFD R\u0026amp;P Focuser\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eFocuser Travel Length\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e0-35 mm (Ruler to 40mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eAdapter Included\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-green\"\u003eTilt Adjuster\u003c\/div\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-yellow\"\u003eRotator\u003c\/div\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-default\"\u003eM68 → M54 Adapter\u003c\/div\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-default\"\u003eM54 → M48 Adapter\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eOptional Flattener\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-default\"\u003eNo Flattener Required\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eCamera Format\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-yellow\"\u003eFull Frame\u003c\/div\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-blue\"\u003eAPS-C\u003c\/div\u003e\n\u003cdiv class=\"notion-property-multi_select-item notion-item-purple\"\u003eM4\/3\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eTotal Weight\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e4.29 kg \/ 9.46 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eOTA Weight\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e3.22 kg \/ 7.1 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv class=\"notion-collection-column-title\"\u003e\n\u003cdiv class=\"notion-collection-column-title-body\"\u003eTube Length\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"notion-property notion-property-text\"\u003e427 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/Redcat-71-Diagram-01.webp?v=1765573565\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/Redcat-71-Diagram-02.webp?v=1765573564\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/Screenshot2025-12-12at2.04.52PM.png?v=1765573565\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/support.williamoptics.com\/products\/cat-71-wifd\" rel=\"noopener\" target=\"_blank\"\u003eOnline Manual\u003c\/a\u003e - includes instructions for installing EAFs, and adjusting focuser tensions and sensor tilt adjustment.\u003c\/span\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":47739949351171,"sku":"OB-T-C-71RDII","price":1398.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/IMG_2488.jpg?v=1771093204"},{"product_id":"used-celestron-deluxe-off-axis-guider-with-11-sct-adapter","title":"Used Celestron Deluxe Off-Axis Guider with 11\" SCT Adapter","description":"\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: This is a used deluxe off-axis guider in excellent condition. Comes with all pieces including an adapter for an 11\" Schmidt-Cassegrain Telescope or EdgeHD as well as its original box and manual. The optics are clean.   \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMost accurate way to guide – improved accuracy compared to using a separate guide scope\u003c\/li\u003e\n\u003cli\u003e12.5 mm multi-coated prism with aluminized backing for maximum reflectivity and illumination to the autoguider\u003c\/li\u003e\n\u003cli\u003eFixed-orientation helical focuser for easy, smooth and accurate autoguider focus\u003c\/li\u003e\n\u003cli\u003e48mm clear aperture supports full frame cameras without vignetting\u003c\/li\u003e\n\u003cli\u003eIncludes adapters with the correct spacing for DSLR cameras, Nightscape CCD and other popular astroimaging cameras\u003c\/li\u003e\n\u003cli\u003eIdeal for Schmidt- Cassegrain and EdgeHD telescopes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Off-Axis Guider is an essential astroimaging accessory for long focal length telescopes that require the most accurate guiding possible. The Celestron Off-Axis Guider uses a prism to intercept a small portion of the telescope’s focal plane (outside the field of view of the main imaging camera) to locate a guide star. Any movement seen by the guide star will be the exact same movement seen by the imaging camera. Guiding this way will correct for tracking errors, as well as opto-mechanical errors or flexure. The result: better astroimages with pinpoint round stars.\u003c\/p\u003e\n\u003cp\u003eOff-Axis Guiders have been around for a long time, but typically pose three main challenges:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eFinding a guide star from the far edges of the telescope’s focal plane can be difficult, considering the small field of view and sometimes less-than-ideal illumination.\u003c\/li\u003e\n\u003cli\u003eGetting both imaging camera and autoguider to reach focus with one another is time consuming and sometimes requires experimentation.\u003c\/li\u003e\n\u003cli\u003eAdditional spacers and adapters are usually required for your particular camera, telescope, and autoguider, which adds to cost and complexity.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eCelestron's Off-Axis Guider addresses these challenges by:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eProviding a large 12.5 mm prism that can be adjusted to move closer to the center of the telescope’s focal plane, depending on the size of the imaging camera. This results in brighter guide stars, with the help of the large prism to fully illuminate the autoguider sensor.\u003c\/li\u003e\n\u003cli\u003eFeaturing a high-quality, fixed-orientation Helical focuser. This provides extremely smooth and accurate focus of the autoguider without changing (or twisting) the autoguider camera orientation.\u003c\/li\u003e\n\u003cli\u003eIncluding all the needed spacers and adapters are included for most common imaging configurations, including DSLR cameras, Nightscape CCD cameras, and more. The following adapters are included: SCT\/EdgeHD, female M48, female M42 (T-thread), male M48, male M42 (T-thread), 3 T-thread spacers\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"table-open\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e48mm mm (1.89 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (oz)\u003c\/td\u003e\n\u003ctd\u003e18 oz (510 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHelical Focuser Travel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTelescope Connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eM42 T-thread, M48, and SCT\/EdgeHD\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAutoguider Connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eM42 T-thread, and standard 1.25\" adapter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCamera Connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eM42 T-thread, and M48\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47763284689155,"sku":"U2602-SB-93648+Adapter","price":245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-61.jpg?v=1771370744"},{"product_id":"used-vaonis-vespera-solar-filter-1","title":"Used Vaonis Vespera Solar Filter","description":"\u003cp\u003eThis is a Vespera solar filter from a trade-in of a Vespera II.  It is in perfect, like new condition, completely clean. \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eYou save big!  \u003c\/p\u003e\n\u003cp\u003eIt does not have a jewel case or box.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e   \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eAstronomer by night, astronomer by day!\u003c\/span\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eObserve the closest star to Earth during the day\u003c\/strong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003ewith the Vespera solar filter. The filter allows you to observe\u003c\/span\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003esunspots\u003c\/strong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e(dark spots) that show the intensity of the Sun’s activity.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSolar Mode\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows you to observe the Sun in almost real-time using the live display. Capture photos at any time from the Observation tab of the Singularity mobile app.\u003c\/p\u003e\n\u003cp\u003eTake several shots at different times of the day, week or month and compare your photos. Witness how the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSun’s activity\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003echanges with the appearance or disappearance of sunspots. These can have a life span of several days, more rarely several weeks.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAstronomer by night, astronomer by day! Observe the closest star to Earth during the day with the Vespera solar filter. The filter allows you to observe sunspots (dark spots) that show the intensity of the Sun’s activity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhotograph the Sun with Vespera\u003cbr\u003e\u003c\/strong\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eSolar Pointing\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003emode allows you to observe the Sun in almost real-time using the live display*. Capture photos at any time from the Observation tab of the Singularity mobile app.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cdiv\u003e\n\u003ch4\u003e\u003cstrong\u003eWarnings\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eYour Vespera station should never be pointed towards the sun unless a solar filter is installed.\u003c\/li\u003e\n\u003cli\u003eYou can only use Vespera to observe the sun using the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cem\u003eSolar Pointing\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeature of the Singularity app and the solar filter specially designed by Vaonis. The use of any other means to observe the Sun (pointing by coordinates, pointing by hand, use of any other filter, etc.) would void your warranty in the event of damage to your equipment. (see Warranties below).\u003c\/li\u003e\n\u003cli\u003eNever look directly at the sun without adequate protection. Direct observation of the sun without protection and without a solar filter, even for a short time, can lead to serious eye burns and potential loss of vision or even blindness.\u003c\/li\u003e\n\u003cli\u003eDo not attempt to open the lens ring that contains the filter (see Warranty below).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Vaonis","offers":[{"title":"Default Title","offer_id":47774575952131,"sku":"U2602-MH-AC021","price":119.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/ab0cf946-0996-474c-acee-03d3c765e6aa.jpg?v=1771635003"},{"product_id":"used-generic-dew-heater-strap-for-6-telescopes","title":"Used Generic Dew Heater Strap for 6\" Telescopes","description":"\u003ch4\u003eCondition\u003c\/h4\u003e\n\u003cp\u003eThis is a used dew heater strap that will fit 6\" telescopes. It is in excellent condition. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eThis is a piece of high-quality hardware that is sure to please. This thick film heater strap operates at 12 volts for the purpose of providing even heating without hot spots or blackouts for your scope of choice. It is an excellent choice for any astronomer who often has to deal with dew and moisture buildup in their scopes, and works marvelously to counteract that hazard without issue or complication.\u003c\/span\u003e\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":47790606221571,"sku":"U2602-SB-DEW-DN-6in","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-157.jpg?v=1772230543"},{"product_id":"used-blue-fireball-2-twist-lock-eyepiece-extension-tube-50mm-1","title":"Used Blue Fireball 2\" Twist Lock Eyepiece Extension Tube 50mm","description":"\u003ch4\u003eCondition: \u003c\/h4\u003e\n\u003cp\u003eThis is a used Blue Fireball 2\" eyepiece extension tube that is 50mm and in good condition. The outside of the body is a little worn as seen in the pictures provided, and does \u003cstrong\u003enot\u003c\/strong\u003e come with a box. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eNew, improved version of Blue Fireball's X-04 eyepiece extension tube - with twist-lock, self-centering mechanism!\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis high-quality Blue Fireball extension tube can be inserted into any 2\" telescope focuser to gain an additional 50mm (1.97\") of back-focus travel. With this, eyepieces and accessories that you may not have been able to use because your telescope tube was too short are usable again!\u003c\/p\u003e\n\u003cp\u003eLack of sufficient back-focus travel is a common problem with many of today's fast f-ratio telescopes, especially if you have a low profile focuser or a short telescope tube that is optimized for binoviewer viewing. The 50mm extension tube alleviates this problem. This tube can also be used with 1.25\" accessories with the use of commonly available 1.25\"-2\" adapters (sold separately).\u003c\/p\u003e\n\u003cp\u003eWith this adapter, you can forget about fumbling with thumbscrews in the dark. Just twist and lock the knurled twist lock ring at the top, and your 2\" eyepiece or other accessory will be centered precisely.  The helical centering mechanism is controlled by an inner polypropylene compression ring that will not mar your eyepieces. Its long length ensures that the adapter works well with smooth and recessed eyepiece barrels.\u003c\/p\u003e\n\u003cp\u003eIt also includes a large thumbscrew should you feel the need to provide added security for heavy items after you have tigthened the twist lock ring; however, use of this screw is optional and not required for regular use.\u003c\/p\u003e\n\u003cp\u003eThis practical and superb quality adapter is made from precision machined aluminum and is black anodized. The inside surface of this tube is black-matted to enhance contrast by reducing stray light reflections and is threaded to accept standard 2\" telescope filters.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTotal length = 82.5mm (3.25\")\u003c\/li\u003e\n\u003cli\u003eExtension provided = 50mm (1.97\")\u003c\/li\u003e\n\u003cli\u003eWeight = 4oz (113g)\u003c\/li\u003e\n\u003cli\u003eCompression band depth (from top edge) = 16.2mm (0.64\")\u003c\/li\u003e\n\u003cli\u003eCompression band length = Approx. 16mm (0.63)\u003c\/li\u003e\n\u003cli\u003eMaximum diameter = 62mm (2.44\")\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Blue Fireball","offers":[{"title":"Default Title","offer_id":47832253956355,"sku":"U2602-SB-X-08","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-178.jpg?v=1773265889"},{"product_id":"used-celestron-edgehd-800-ota-focus-motor-telrad-base","title":"Used Celestron EdgeHD 800 OTA, Focus Motor, Telrad base, Bathinov Mask, and Dew Shield","description":"\u003ch3\u003ePRICE DROP:  Was $1000, now $900!  \u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e This is an 8\" EdgeHD OTA in fair condition. \u003cspan style=\"text-decoration: underline;\"\u003eThe optics are smudged on the inside of the corrector plate\u003c\/span\u003e.  See the photos.  The outside body is worn and has minor scratches that can be seen in the images. It includes a Celestron focus motor, a Telrad base, a dew shield, and a Bathinov mask\u003c\/p\u003e\n\u003cp\u003eHOWEVER, \u003cstrong\u003ethe smudging can be cleaned\u003c\/strong\u003e.  Take a look at the very last photo.  We took the Fastar secondary mirror out, and got inside with a Kimwipe and some cleaning solution.  We were able to clean a streak around the inside.  If you are willing to \u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003etake the corrector plate off and clean\u003c\/em\u003e\u003c\/span\u003e the inside, we believe you will be able to fully clean this and get yourself \u003cem\u003ea bargain\u003c\/em\u003e in the process. \u003c\/p\u003e\n\u003cp\u003eMind you, taking the corrector plate off is not for the faint of heart.  Celestron precisely aligns these at the factory.  You have to be very careful to put it back on in the exact same orientation it was when you took it off.  \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eIt does not include the standard 9x50 finder, diagonal, or eyepiece.  We have discounted the price accordingly to reflect this, as well as the condition issues discussed above.  \u003c\/p\u003e\n\u003cp\u003eWe do not have the shipping boxes for this, so this available for in-store pickup only. There are no returns on this item.  \u003c\/p\u003e\n\u003chr\u003e\n\u003cul\u003e\n\u003cli\u003eExperience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces.\u003c\/li\u003e\n\u003cli\u003eAluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging.\u003c\/li\u003e\n\u003cli\u003eVersatile design accommodates 3 focal ratios: native f\/10, f\/7 with the addition of a focal reducer, or ultra-fast f\/2 imaging with a removable secondary mirror and third-party accessories.\u003c\/li\u003e\n\u003cli\u003eCelestron’s premium StarBright XLT coatings provide maximum light transmission.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSee the Universe in HD\u003c\/strong\u003e\u003cbr\u003eEdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrue Astrograph Quality\u003c\/strong\u003e\u003cbr\u003eMany optical designs that advertise themselves as \"astrographs\" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.\u003cspan\u003e \u003c\/span\u003eLearn more about EdgeHD technology.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImproved Performance\u003c\/strong\u003e\u003cbr\u003eSuperior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Features\u003cbr\u003e\u003c\/strong\u003eIn addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMirror clutches\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube vents\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastar versatility\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- EdgeHD is the most versatile imaging telescope available today. At its native f\/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f\/2 wide field imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually Tested\u003c\/strong\u003e\u003cbr\u003eEvery EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable class=\"table-open\" style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eAperture (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e203.2 mm (8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eDovetail Compatibility\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eCGE Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFinderscope\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eN\/A; base only\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e2032 mm (80 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFocal Length of Eyepiece 1 ...\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eN\/A\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eHighest Useful Magnification\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e480 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eLight Gathering Power (Comp...\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e843 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eLimiting Stellar Magnitude\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eLowest Useful Magnification\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e29 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eMagnification of Eyepiece 1\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eStarBright XLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Design\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eEdgeHD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Tube\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Tube Length\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e17 in (432 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Tube Weight\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e14 lbs (6.35 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eResolution (Dawes)\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e0.57 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eResolution (Rayleigh)\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e0.69 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eSecondary Mirror Obstructio...\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e11%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eSecondary Mirror Obstruction\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e2.7 in (69 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eStar Diagonal\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47856278536451,"sku":"U2603-SZ-91030-XLT","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-187.jpg?v=1773950714"},{"product_id":"used-primalucelab-giotto-smart-flat-field-generator","title":"Used PrimaLuceLab Smart Flat Field Generator for Origin","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a used PrimaLuceLab GIOTTO smart flat field generator for Origin is in excellent condition! This includes the GIOTTO for Origin smart flat field generator, USB-C to USB-A cable, 12V power cable with cigarette plug, and GIOTTO quick start guide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGIOTTO for Origin is an intelligent flat field generator specifically designed for Celestron Origin telescopes, enabling precise flat field calibration with the smart telescope. This ensures that if you rotate the Origin camera to better frame your target, or when new cameras become available in the future, you can easily capture a new flat-frame image. The Celestron app will then use this updated image to enhance calibration, delivering the best possible results. Retaining the advanced features of GIOTTO, this version has been uniquely designed for seamless integration with Celestron Origin, providing a perfect fit as a replacement for the standard telescope cap. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Celestron Origin Smart Telescope is designed to simplify deep-sky imaging, automatically applying factory-calibrated flat frames to enhance image quality. However, when the camera is rotated to better frame a target or when new cameras become available in the future, the original calibration becomes inaccurate, requiring a new flat frame capture. This is where the GIOTTO for Origin flat field generator comes in. Designed specifically for the Origin telescope, GIOTTO ensures precise and consistent flat frame calibration by uniformly illuminating the optics with our advanced LED technology. It seamlessly fits onto Origin’s dew shield, locking securely in place, and allows users to wirelessly control brightness levels via their smart device. With GIOTTO for Origin, astrophotographers can easily recalibrate their telescope whenever needed, ensuring the highest image quality for every capture.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"GIOTTO for Origin Smart Flat Field Generator\" src=\"https:\/\/www.primalucelab.com\/img\/cms\/GIOTTO-for-Origin-smart-flat-field-generator-description1-EN.jpg?1742377424133\" title=\"GIOTTO for Origin Smart Flat Field Generator\" width=\"1000\" height=\"596\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eGIOTTO for Origin Smart Flat Field Generator - \u003cspan\u003emain features\u003c\/span\u003e:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for Celestron Origin Intelligent Home Observatory\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eLED lights at color temperature similar to sunlight, to provide a \u003cstrong\u003eneutral color tone\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecial designed \u003cstrong\u003elight diffuser\u003c\/strong\u003e for an even illumination\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eAdjustable light intensity\u003c\/strong\u003e by 100 steps (0 to 100%)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIt operates on a 12V power source\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eUSB-C port\u003c\/strong\u003e to let you easily connect it to a Windows computer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWiFi connectivity\u003c\/strong\u003e so you can wirelessly control it using your smartphone or tablet via the included Virtual HandPad\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eControl with \u003cstrong\u003ePLAY astrophotography software\u003c\/strong\u003e for Windows computers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eASCOM driver\u003c\/strong\u003e to let you control it through third party softwares\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 0.4 kg (0.9 lb)\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"853\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/FROZ1PiHEkg?rel=0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eUse the \u003cspan\u003eVirtual HandPad\u003c\/span\u003e to control GIOTTO using the same smart device used to control Origin\u003c\/h2\u003e\n\u003cp\u003eControlling GIOTTO for Origin is as intuitive as using your Origin Smart Telescope. Since Origin users already operate their telescope via a smartphone or tablet, they can use the same smart device to wirelessly control GIOTTO for Origin by using the Virtual HandPad and its easy-to-use interface. By simply connecting to GIOTTO’s built-in Wi-Fi and accessing its control page, users can activate the flat field generator and adjust brightness levels and  with precision.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"GIOTTO for Origin Smart Flat Field Generator - Virtual HandPad\" src=\"https:\/\/www.primalucelab.com\/img\/cms\/GIOTTO-for-Origin-smart-flat-field-generator-description4-EN-HI.jpg?1742379072969\" title=\"GIOTTO for Origin Smart Flat Field Generator - Virtual HandPad\" width=\"1000\" height=\"567\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eGIOTTO includes electronics for \u003cspan\u003eUSB control from a computer\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eAt the bottom of GIOTTO for Origin, you’ll find the control panel with a USB-C port, allowing you to easily connect it to a standard Windows computer, if preferred. GIOTTO natively operates on a 12V power source, and the package includes a 12V power cable with a cigarette lighter plug for convenient power supply. If you prefer to use an external power source, make sure it provides 12V at least 2A and features a 5.5\/2.5mm center-positive power plug.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"GIOTTO for Origin, Smart Flat Field Generator - control electronics\" src=\"https:\/\/www.primalucelab.com\/img\/cms\/GIOTTO-for-Origin-smart-flat-field-generator-description2-EN.jpg?1653037558597\" title=\"GIOTTO for Origin, Smart Flat Field Generator - control electronics\" width=\"1000\" height=\"550\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eGIOTTO for Origin works also with\u003cspan\u003e PLAY astrophotography software\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eIf you prefer to control GIOTTO for Origin by using a Windows computer, you can use PLAY astrophotography software that provides an easy to use interface to activate your GIOTTO and precisely adjust its brightness. And if you want to use your preferred Windows astrophotography software, you can also control GIOTTO by using other softwares thanks to the dedicated ASCOM driver.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"GIOTTO for Origin, Smart Flat Field Generator - PLAY software\" src=\"https:\/\/www.primalucelab.com\/img\/cms\/GIOTTO-for-Origin-smart-flat-field-generator-PLAY-software.png?1742388849935\" title=\"GIOTTO for Origin, Smart Flat Field Generator - PLAY software\" width=\"1000\" height=\"539\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eGIOTTO for Origin is designed for \u003cspan\u003eOrigin Intelligent Home Observatory\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eGIOTTO for Origin smart flat field generator fits directly onto the end of Origin’s dew shield and locks into place with the same tabs used by Origin’s dust cover. To secure GIOTTO for Origin in front of the telescope, rotate it in the same way you do to fix the telescope’s original dust cover. Please note that, unlike other GIOTTO models, GIOTTO for Origin is not compatible with the ALTO telescope cover motor.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"GIOTTO for Origin Smart Flat Field Generator - dimensions\" src=\"https:\/\/www.primalucelab.com\/img\/cms\/GIOTTO-for-Origin-smart-flat-field-generator-description3.png?1742381149566\" title=\"GIOTTO for Origin Smart Flat Field Generator - dimensions\" width=\"1000\" height=\"567\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eGIOTTO for Origin, Smart Flat Field Generator: \u003cspan\u003escope of delivery\u003c\/span\u003e.\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGIOTTO for Origin smart flat field generator\u003c\/li\u003e\n\u003cli\u003eUSB-C to USB-A cable\u003c\/li\u003e\n\u003cli\u003e12V power cable with cigarette plug\u003c\/li\u003e\n\u003cli\u003eGIOTTO quick start guide\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":47872443416835,"sku":"U2603-CU-PLLGIOTTORG6","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-248.jpg?v=1774394659"},{"product_id":"celestron-x-cel-eyepieces","title":"Used Celestron X-Cel Eyepieces","description":"\u003ch3\u003e\u003cstrong\u003ePRICE DROP!  Was $50; now just $45!  \u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are used Celestron X-Cel eyepieces in excellent condition. The optics and bodies are clean. \u003cspan\u003eAny dust you see in the photos is easily removable - it seems that these develop an electrostatic charge such that the dust in the air is just attracted to the optics. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese are \u003cstrong\u003eNOT\u003c\/strong\u003e the X-Cel LX; the X-Cel line preceded the current X-Cel LX line of eyepieces.  These X-Cel eyepieces have a \u003cspan style=\"text-decoration: underline;\"\u003e55-degree\u003c\/span\u003e field of view, not the 60-degree field of view that you'd get with a current X-Cel LX eyepiece.  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003cp class=\"pd3LR\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem; display: inline !important;\"\u003eIf you are looking for an eyepiece that excels for planetary viewing, then Celestron’s X-Cel offers the unique features you are looking for. A 6-element\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efully multi-coated\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoptical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views.\u003c\/p\u003e\n\u003cp class=\"pd3LR\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem; display: inline !important;\"\u003e \u003c\/p\u003e\n\u003cp\u003e   \u003c\/p\u003e\n\u003cp class=\"pd3LR\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem; display: inline !important;\"\u003eWith a wide 55° apparent field of view, and a large clear aperture the X-Cel is one of the most comfortable eyepieces to use. Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power.\u003c\/p\u003e\n\u003cp class=\"pd3LR\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem; display: inline !important;\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"pd3LR\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem; display: inline !important;\"\u003eThe X-Cel comes with soft rubber eyecups. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths. Threaded barrels accept 1-1\/4\" thread-in filters.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"pd3LR\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem; display: inline !important;\"\u003e \u003c\/p\u003e\n\u003cp class=\"pd3LR\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem; display: inline !important;\"\u003e \u003c\/p\u003e\n\u003ctable id=\"product-specs-list\" class=\"table-open\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\n\u003ctbody id=\"spec-block-1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e55°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief (mm)\u003c\/td\u003e\n\u003ctd\u003e20 mm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully multi-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Lens Elements\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size (in)\u003c\/td\u003e\n\u003ctd\u003e1.25 in (32 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal Eyepieces\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreaded For Filters\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Celestron","offers":[{"title":"2.3mm","offer_id":47876452778243,"sku":"U2603-JH-X-Cel-2.3mm","price":45.0,"currency_code":"USD","in_stock":true},{"title":"5mm","offer_id":47876466868483,"sku":"U2603-JH-X-Cel-5mm","price":50.0,"currency_code":"USD","in_stock":false},{"title":"8mm","offer_id":47876466901251,"sku":"U2603-JH-X-Cel-8mm","price":45.0,"currency_code":"USD","in_stock":true},{"title":"10mm","offer_id":47876466934019,"sku":"U2603-JH-X-Cel-10mm","price":50.0,"currency_code":"USD","in_stock":false},{"title":"12.5mm","offer_id":47876466966787,"sku":"U2603-JH-X-Cel-12.5mm","price":50.0,"currency_code":"USD","in_stock":false},{"title":"18mm","offer_id":47876466999555,"sku":"U2603-JH-X-Cel-18mm","price":45.0,"currency_code":"USD","in_stock":true},{"title":"21mm","offer_id":47876467032323,"sku":"U2603-JH-X-Cel-21mm","price":45.0,"currency_code":"USD","in_stock":true},{"title":"25mm","offer_id":47876467065091,"sku":"U2603-JH-X-Cel-25mm","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-255.jpg?v=1774469123"},{"product_id":"like-new-vixen-sxd2-eq-mount-w-sxg-hal130-tripod-sxg-half-pillar-starbook-one-controller","title":"Like New Vixen SXD2 EQ mount w\/SXG-HAL130 tripod, SXG Half Pillar + Starbook One controller","description":"\u003cp\u003eThis is a Vixen SXD2 EQ mount in pristine, like new condition.  Although this unit is about 10-15 years old, there isn't a mark anywhere on it.  We have tested it, and of course it works perfectly with the included Starbook One controller.  It also includes a brand new SXG Half Pillar, still in its original bubble wrap, which has never been used.  \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis mount is from the estate of Thomas Shea, user name \"teashea\" on Cloudy Nights.  Mr. Shea was known there for his extensive collection of more than a dozen Taks, all on Vixen mounts.  We've received ten each of his scopes and mounts, all in equally brand new, perfect, pristine condition:  \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/964699d7-3b14-4885-b99f-920991256842.jpg?v=1774128846\"\u003e\u003c\/p\u003e\n\u003cp\u003eHere's his photo of his telescope room, showing most of them:  \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/tsheataks.jpg?v=1774120040\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eHe explained his lack of use of all of his scopes there:  \u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e\"I am much more a \u003cstrong\u003etelescope collector\u003c\/strong\u003e than a telescope user. \u003cmeta charset=\"utf-8\"\u003eAs with all my Takahashi telescopes, this system has been used for \u003cstrong\u003eless than two hours\u003c\/strong\u003e - to test it when I first purchased it. Since then it has been sitting in my dedicated telescope room, with \u003cstrong\u003eHEPA air filtration\u003c\/strong\u003e.\"\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEverything we've seen and know about his scopes and mounts proves this to be absolutely true.  This one is no different from a brand new mount.  This is a nice savings off of the new one, so get it while it's still here!  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIncluded Items:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVixen SXD2 EQ mount (a $1750 value) on a Vixen SXG-HAL130 tripod (a $225 value)\u003c\/li\u003e\n\u003cli\u003eStarbook One controller (a $300 value)\u003c\/li\u003e\n\u003cli\u003eSXG Half pillar in original bubble wrap (a $160 value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eCounterweights:  1.9Kg\/4.2 lb. × 2\u003c\/li\u003e\n\u003cli\u003eOriginal Vixen manuals for SXD2 mount head, polar scope, and SXG-HAL130 tripod\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5.5mm O.D. x 2.1mm I.D. DC tip to 5.5mm O.D. x 3.3mm I.D. tip For use with Vixen Mounts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis is over $2400 worth of gear for just $1100!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis mount is on display on our showroom floor. We \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003ehave obtained suitable shipping boxes for this, and can ship it to you for a \u003c\/span\u003e\u003cspan style=\"text-decoration: underline;\"\u003e$99 shipping charge\u003c\/span\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e.  \u003c\/span\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eVixen SXD2 mount\u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"detailMainInfo_text\"\u003e\n\u003cp class=\"detailMainInfo_description\"\u003eThe SXD2 equatorial mount is a high precision, sturdy mount. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailFreeInfo-01\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailSubInfo\"\u003e\n\u003cdiv class=\"detailSubInfo_pane detailSubInfo_visible\"\u003e\n\u003ch3 class=\"detailSubInfo_head\"\u003e\u003cspan class=\"detailSubInfo_text\"\u003eVixen Telescope SXD2 Mount Description\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"detailSubInfo_stepTable\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch4\u003ePulse motors and micro-step motion control system.\u003c\/h4\u003e\n\u003cp\u003eThe heart of the SXD2 is the precision pulse motors. These highly responsive motors use a micro-step motion control system to deliver powerful yet silky smooth drive controls in both fine motion and quick slewing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch4\u003eSmooth R.A and Dec motion.\u003c\/h4\u003e\n\u003cp\u003eBearings are used in the R.A and Dec axies and the rotating shafts of the worm gears. This reduces the load on the motors and ensures smooth rotation. No reduction gears on the motor shaft eliminates the presence of backlash.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch4\u003eCross over meridian function.\u003c\/h4\u003e\n\u003cp\u003eThe function of \"cross over meridian\" allows you to change a timing of the reverse motion of the optical tube when your target celestial object is approaching to the culmination.\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eSXD2 equatorial mount \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003eR.A. slow motion\u003c\/div\u003e\n\u003cdiv\u003eWorm and wheel gears with 180-tooth whole circle micro movement, 72mm in diameter, mode of brass\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eDEC slow motion\u003c\/div\u003e\n\u003cdiv\u003eWorm and wheel gears with 180-tooth whole circle micro movement, 72mm in diameter, mode of brass\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eWorm shaft gear\u003c\/div\u003e\n\u003cdiv\u003e9mm in diameter, made of brass\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eR.A. axis\u003c\/div\u003e\n\u003cdiv\u003e40mm in diameter, made of carbon steel\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eDEC axis\u003c\/div\u003e\n\u003cdiv\u003e35mm in diameter, made of carbon steel\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eCounterweight bar\u003c\/div\u003e\n\u003cdiv\u003e20mm in diameter, retractable, made of stainless steel\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eNumber of bearings\u003c\/div\u003e\n\u003cdiv\u003e9 pieces\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003ePolar axis scope\u003c\/div\u003e\n\u003cdiv\u003e(Preinstalled) 6×20mm, Field of view 8 degrees, 3-star alignment system, Variable illuminated reticle with auto turn-off, Brightness adjustable in 8 steps, Dark field illumination, Setting accuracy within 3 arc minutes\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eAltitude adjustment\u003c\/div\u003e\n\u003cdiv\u003eLatitude adjustable between 0 degree and 70 degrees (divided in 3 zones and adjustable +\/- 15 degrees per zone, for high, middle and low latitudes), latitude scale in 2 degrees increments, Fine adjustments with a tangent screw knob about 0.8 degrees per rotation\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eAzimuth adjustment\u003c\/div\u003e\n\u003cdiv\u003eFine adjustments with twin screw knobs about 1.2 degrees per rotation, adjustable range about +\/- 7degrees\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eMotor drive\u003c\/div\u003e\n\u003cdiv\u003ePulse motors with micro-step motion control (250 pps)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003ePhotographic loading weight\u003c\/div\u003e\n\u003cdiv\u003e15kg \/ 33 lb (Maximum torque load : 375kg -cm at a point of 25cm from the place where th RA and DEC axes cross.)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003ePower port\u003c\/div\u003e\n\u003cdiv\u003eDC 12V EIAJ RC5320A Class4\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003ePower supply\u003c\/div\u003e\n\u003cdiv\u003eCigarette-lighter plug cord (center plus polarity) (not included)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eWorking voltage\u003c\/div\u003e\n\u003cdiv\u003eDC 12V\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eElectricity consumption\u003c\/div\u003e\n\u003cdiv\u003e0.45A to 2.5A\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eSize\u003c\/div\u003e\n\u003cdiv\u003e360mm × 343mm × 128mm\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eWeight\u003c\/div\u003e\n\u003cdiv\u003e9.2Kg \/ 20.3 lb (without counterweight)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eCounterweights\u003c\/div\u003e\n\u003cdiv\u003e1.9Kg × 2\/ 4.2 lb × 2\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"prose\"\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"group_fDXOr6EpR9\"\u003e\n\u003ch2 style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; display: inline !important;\" class=\"product-title\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; display: inline !important;\" class=\"product-title\"\u003eVixen SXG-HAL130 Aluminum Tripod\u003c\/h2\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eRobust and stable aluminum tripod for Vixen mounts\u003c\/li\u003e\n\u003cli\u003eLightweight and transportable with sturdy design\u003c\/li\u003e\n\u003cli\u003eFor all Vixen mounts with a 45 mm connection\u003c\/li\u003e\n\u003cli\u003eHeight adjustable from 70 - 117.5 cm\u003c\/li\u003e\n\u003cli\u003eStable aluminum profile ensures minimal vibrations during observations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis robust aluminum tripod with a 45 mm Vixen standard connection is guaranteed to impress. Weighing just 3.1 kg, it is very easy to transport. It also offers outstanding stability for your Vixen mount. The aluminum profile ensures that vibrations are kept to a minimum when you are observing with your telescope.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntuitive STAR BOOK ONE controller\u003cbr\u003e\u003c\/strong\u003eThe SX2 mount includes the STAR BOOK ONE controller, known for its user-friendly interface. This lightweight powerhouse enables precise movement along the X and Y axes (RA and Dec directions). Explore versatile tracking options, including sidereal and solar rates, as well as features like backlash compensation, autoguider port, and a built-in red LED light.\u003c\/p\u003e\n\u003cdiv class=\"detailMainInfo_text\"\u003e\n\u003ch2 class=\"detailMainInfo_head\"\u003eVixen Half Pillar for SXG-HAL130 Tripod\u003c\/h2\u003e\n\u003cp class=\"detailMainInfo_description\"\u003eUsable with the SX2, SXD2, SXP, GP2 or GPD2 equatorial mounts. It can prevent the telescope tube hitting on a tripod leg and minimize blind spots. ※An optional adapter is needed additionally if used with GPD2 with the former 60mm mounting base.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailFreeInfo-01\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailSubInfo\"\u003e\n\u003cdiv class=\"detailSubInfo_pane detailSubInfo_visible\"\u003e\n\u003csection class=\"detailSubInfo_section\"\u003e\n\u003cdiv class=\"detailSubInfo_section_head\"\u003e\n\u003ch4\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailSubInfo_specTable\"\u003e\n\u003cp\u003eSXG Half Pillar\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeight\u003c\/div\u003e\n\u003cdiv\u003e207mm\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eDiameter\u003c\/div\u003e\n\u003cdiv\u003e130mm\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eWeight\u003c\/div\u003e\n\u003cdiv\u003e1.8kg \/ 3.96lb\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eYou can use the tripod for the following Vixen mounts with a 45 mm connection: Porta II, GP2, GPD2, SX, SX2, SXD2, SXP, SXP2, AP, APZ, HF2, AXJ. Due to the heavyweight of AXJ mounts, we recommend the SXG-HAL130 tripod for use with these mounts.\u003c\/p\u003e\n\u003cp\u003eImportant: Please ensure that your mount has a 45 mm connection.  \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Vixen","offers":[{"title":"Default Title","offer_id":47876877910275,"sku":"U2603-JH-SXD2-HAL-PILLAR","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/e43dac7c-99af-4e87-b5a0-ed139c859f6a.jpg?v=1774477990"},{"product_id":"tmb-optical-planetary-ii-eyepieces","title":"TMB Optical Planetary II Eyepieces","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are used TMB optical planetary II 1.25\" eyepieces in good condition. All of the optics and bodies are clean. \u003cspan\u003eAny dust you see in the photos is easily removable. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: Eyepieces 4.5mm, 5mm, 6mm, 7mm, 7.5mm, and 8mm, have some rattling. This condition issue has been taken into account for pricing each item. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- This 1.25\" TMB eyepieces is designed especially for Planetary observations\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- It is designed to give the highest resolution of subtle contrasts seen on planets and the moon. While many eyepieces are designed to give super and ultra wide angle views, they do so at a loss of details and contrast.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- This planetary eyepiece are designed to be used for high power, high resolution views where faint details are the objective. There is virtually no halo around bright objects that lose contrast.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- This eyepieces have flat fields and a field of view is 58 degree.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- The eye cup on the eyepieces is adjustable up and down to give you the most Planetary Eyepiece With Caps comfortable view.Turn it up for use with eye glasses or down without glasses.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Standard 1.25\" Fitting Diameter to the Eyepiece Holder\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Standard 1.25\" Inner Thread to Fit Light Filters\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Comfortable Long Eye Relief: 16mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Field of View:58 Degree\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Made of 5 Different Lenses,in 3 Groups\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Coated::Multicoated\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"TMB","offers":[{"title":"2.5mm","offer_id":47879375618307,"sku":"U2603-JH-2.5mmTMB","price":40.0,"currency_code":"USD","in_stock":false},{"title":"3.2mm","offer_id":47879375651075,"sku":"U2603-JH-3.2mmTMB","price":40.0,"currency_code":"USD","in_stock":true},{"title":"4.5","offer_id":47879629799683,"sku":"U2603-JH-4.5mmTMB","price":35.0,"currency_code":"USD","in_stock":false},{"title":"5mm","offer_id":47879375683843,"sku":"U2603-JH-5mmTMB","price":35.0,"currency_code":"USD","in_stock":true},{"title":"6mm","offer_id":47879375716611,"sku":"U2603-JH-6mmTMB","price":35.0,"currency_code":"USD","in_stock":true},{"title":"7mm","offer_id":47879375749379,"sku":"U2603-JH-7mmTMB","price":35.0,"currency_code":"USD","in_stock":false},{"title":"7.5mm","offer_id":47879375782147,"sku":"U2603-JH-7.5mmTMB","price":35.0,"currency_code":"USD","in_stock":true},{"title":"8mm","offer_id":47879375814915,"sku":"U2603-JH-8mmTMB","price":35.0,"currency_code":"USD","in_stock":false},{"title":"9mm","offer_id":47879375847683,"sku":"U2603-JH-9mmTMB","price":40.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-274.jpg?v=1774553542"},{"product_id":"used-svbony-gold-line-eyepieces","title":"Used Svbony Gold-Line Eyepieces","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are used Svbony gold-line eyepieces in excellent condition. The optics and bodies are clean. \u003cspan\u003eAny dust you see in the photos is easily removable. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e1. Fixed folding rubber eyecup allows easy use with or without eyewear\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e2. Svbony astronomy eyepiece body is made of aluminum. A two-step anodizing process results in a beautiful matte finish that resists reflections and glare\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e3. Sturdy anodized aluminum barrels are threaded for any \u003ca href=\"https:\/\/www.svbony.com\/cls-filter\" title=\"Svbony Astronomy Filters\" rel=\"noopener\" target=\"_blank\"\u003eSvbony 1.25\" Astronomy Filters\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e4. The edges of the optics are blackened for increased contrast, and prevent internal reflections\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e5. Anti-reflection fully multi-coated optics ensure bright and clear high-images at any magnification, with true color rendition\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e6. Suitable for observsing the surface of the moon, planets, nebulae, star clusters, diffuse nebulae and other celestial bodies etc \u003c\/span\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\" height=\"863\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eF9157A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eF9157B\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eF9157C\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eF9157D\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFocal Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBarrel Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\"\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\"\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\"\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEye Relief\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApparent Field of View\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e66°\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e66°\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e66°\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e66°\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFilter Threads Standard\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\" Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\" Filter  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\" Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25\" Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFully Multi-Coated\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFully Multi-Coated\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFully Multi-Coated\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFully Multi-Coated\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStructure Design\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5-elements in 3 groups\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6-elements in 4groups\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4-elements in 3 groups\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5-elements in 3groups\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRubber Eye Guard\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"SVBony","offers":[{"title":"6mm","offer_id":47881868574979,"sku":"U2603-JH-6mmSVB-GL","price":25.0,"currency_code":"USD","in_stock":false},{"title":"9mm","offer_id":47881868607747,"sku":"U2603-JH-9mmSVB-GL","price":25.0,"currency_code":"USD","in_stock":false},{"title":"15mm","offer_id":47881868640515,"sku":"U2603-JH-15mmSVB-GL","price":25.0,"currency_code":"USD","in_stock":false},{"title":"20mm","offer_id":47881868673283,"sku":"U2603-JH-20mmSVB-GL","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-300.jpg?v=1774644501"},{"product_id":"used-svbony-zoom-eyepieces","title":"Used Svbony Zoom Eyepieces","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are used Svbony zoom eyepieces in excellent condition! The optics and bodies are clean. \u003cspan\u003eAny dust you see in the photos is easily removable. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eZoom range allows flexible magnification adjustments for different viewing needs.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFully multi-coated lenses ensure high light transmission, delivering bright and clear images. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSmooth zoom mechanism provides quick, easy adjustment for various objects or targets. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRobust construction with a durable aluminum housing ensures longevity and reliability. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFits all standard 1.25-inch focusers, compatible with most telescopes for versatile use.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBony","offers":[{"title":"7-21mm","offer_id":47881935487235,"sku":"U2603-JH-7-21mmSVB-Zoom","price":40.0,"currency_code":"USD","in_stock":true},{"title":"8-24mm","offer_id":47881935520003,"sku":"U2603-JH-8-24mmSVB-Zoom","price":40.0,"currency_code":"USD","in_stock":false},{"title":"10-30mm","offer_id":47881935552771,"sku":"U2603-JH-10-30mmSVB-Zoom","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-305.jpg?v=1774646457"},{"product_id":"used-explore-scientific-62-degree-argon-purged-waterproof-eyepieces","title":"Used Explore Scientific 62 degree Argon-Purged Waterproof Eyepieces","description":"\u003cp\u003e\u003cstrong\u003eConditions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are used Explore Scientific 62 degree 1.25\" and 2\" eyepieces in excellent condition. The optics and bodies are clean. Any dust you see in the photos is easily removable. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: The 5.5mm eyepiece optics have smearing as shown in the provided photos. We have adjusted the price accordingly. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription: \u003c\/strong\u003e\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cp\u003eUsing advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 62° Series Argon-Purged Waterproof wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The 62° Series eyepieces are near par-focal (meaning they focus at nearly the same point regardless of the focal length you select) and come with a removable and foldable soft silicone rubber eyecup for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope.\u003c\/p\u003e\n\u003cp\u003eProtection from the Outdoors - By making the eyepiece body Argon-purged, the waterproof eyepiece internal elements will remain as pristine as the day they were assembled.  \u003c\/p\u003e\n\u003cp\u003eArgon atoms are larger than that of Nitrogen and therefore they are less likely to leak or diffuse their way through the seals over the life of the eyepiece. The atomic radius of Argon is larger than Nitrogen by 0.13 angstroms and has a larger atomic volume by 11.2 cubic centimeters\/molecule. Argon also has superior inertness vs Nitrogen (i.e. forming few or no chemical compounds with other elements) that prevents adverse reactions with eyepiece components and therefore extends the longevity of the internal components, and also prevents chemical reactions with other elemental contaminants that may be introduced through a weakened seal. And, finally because Argon is less conductive of heat than Nitrogen, Argon cools slower thereby buffering the effects of rapid temperature changes of the optics.\u003c\/p\u003e\n\u003cp\u003eThe sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. Our waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal we test every eyepiece in one meter of water for 30 minutes.\u003c\/p\u003e\n\u003cp\u003eExplore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 62° Series eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 62 degrees and near par focal design, these eyepieces offer incredible value in a very nice eyepiece. \u003c\/p\u003e\n\u003cp\u003eAnother great benefit of these eyepieces is the excellent contrast and ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003ctable height=\"375\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#dad4d4\" width=\"28%\"\u003eDescription\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#dad4d4\" width=\"70%\"\u003e 62° Series Argon-Purged Waterproof Eyepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#eeeeef\"\u003eItem Number\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#eeeeef\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#dad4d4\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#dad4d4\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#eeeeef\"\u003eLength\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#eeeeef\"\u003e\u003cspan\u003e76mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#dad4d4\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#dad4d4\"\u003e\u003cspan\u003e50mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#eeeeef\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#eeeeef\"\u003e\u003cspan\u003e8.2oz; 323.47g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#dad4d4\"\u003eBarrel Size\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#dad4d4\"\u003e1.25\" and 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#eeeeef\"\u003eEye Relief\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#eeeeef\"\u003e\u003cspan\u003e19.3mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.272251%;\" bgcolor=\"#dad4d4\"\u003eField Stop Diameter:\u003c\/td\u003e\n\u003ctd style=\"width: 70.680628%;\" bgcolor=\"#dad4d4\"\u003e27.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"5.5mm","offer_id":47882177282307,"sku":"U2603-JH-EPWP6255LE-01","price":40.0,"currency_code":"USD","in_stock":true},{"title":"9mm","offer_id":47882177315075,"sku":"U2603-JH-EPWP6209LE-01","price":50.0,"currency_code":"USD","in_stock":true},{"title":"14mm","offer_id":47882177347843,"sku":"U2603-JH-EPWP6214LE-01","price":50.0,"currency_code":"USD","in_stock":false},{"title":"20mm","offer_id":47882177380611,"sku":"U2603-JH-EPWP6220LE-01","price":50.0,"currency_code":"USD","in_stock":false},{"title":"26mm","offer_id":47882177413379,"sku":"U2603-JH-EPWP6226LE-01","price":50.0,"currency_code":"USD","in_stock":false},{"title":"32mm","offer_id":47882177446147,"sku":"U2603-JH-EPWP6232LE-01","price":100.0,"currency_code":"USD","in_stock":false},{"title":"40mm","offer_id":47882177478915,"sku":"U2603-JH-EPWP6240LE-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-309.jpg?v=1774651356"},{"product_id":"used-orion-highlight-plossl-eyepieces","title":"Used Orion Highlight Plossl Eyepieces","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are used Orion highlight plossl 1.25\" eyepieces in excellent condition. The optics and the bodies are clean. \u003cspan\u003eAny dust you see in the photos is easily removable. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Orion HighLight Plossl Eyepieces provides excellent image quality, good eye relief, wide fields of view and affordability. This Highlight Plossl Starter Set represents an ideal upgrade set to replace lower-quality eyepieces, it includes three must-have focal lengths for low, medium and high-power viewing.\u003c\/p\u003e\n\u003cp\u003eLike the Sirius Plossl line, HighLight eyepieces offer a generous 52° field of view (43° for the 40mm) and crisp, sharp images. But the HighLights' 4-element optics are not just fully coated or multi-coated, but fully multi-coated. That means that every air-to-glass lens surface is multi-layer coated for the highest possible light transmission and better contrast. You'll see more of those pinpoint star images and more faint detail in deep-sky objects. In addition, the lens edges are blackened for additional contrast enhancement. The machined aluminum housings of the HighLight Plossls sport a distinctive anodized finish, with grip traction knurled right into the metal.\u003c\/p\u003e\n\u003cp\u003eThe supple rubber eyeguards shield out extraneous light and fold down for eyeglass wearers. The barrels of HighLight Plossls are precision-machined to a tolerance of +\/- 0.05mm from the nominal specification, so you can be sure of a great fit in your diagonal or focuser. HighLight barrels have a setscrew safety recess to reduce the risk of an eyepiece falling out should the locking setscrew become loose. And of course they are internally threaded to accept filters. Each HighLight Plossl eyepiece comes with top and bottom end caps for protection against dirt and stray fingertips.\u003c\/p\u003e","brand":"Orion","offers":[{"title":"6.3mm","offer_id":47884112822531,"sku":"U2603-JH-6.3mmOHL","price":20.0,"currency_code":"USD","in_stock":true},{"title":"7.5mm","offer_id":47884112855299,"sku":"U2603-JH-7.5mmOHL","price":20.0,"currency_code":"USD","in_stock":false},{"title":"10mm","offer_id":47884112888067,"sku":"U2603-JH-10mmOHL","price":20.0,"currency_code":"USD","in_stock":true},{"title":"12.5mm","offer_id":47884112920835,"sku":"U2603-JH-12.5mmOHL","price":20.0,"currency_code":"USD","in_stock":false},{"title":"17mm","offer_id":47884112953603,"sku":"U2603-JH-17mmOHL","price":20.0,"currency_code":"USD","in_stock":false},{"title":"20mm","offer_id":47884112986371,"sku":"U2603-JH-20mmOHL","price":20.0,"currency_code":"USD","in_stock":false},{"title":"26mm","offer_id":47884113019139,"sku":"U2603-JH-26mmOHL","price":20.0,"currency_code":"USD","in_stock":false},{"title":"32mm","offer_id":47884113051907,"sku":"U2603-JH-32mmOHL","price":30.0,"currency_code":"USD","in_stock":false},{"title":"40mm","offer_id":47884113084675,"sku":"U2603-JH-40mmOHL","price":30.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-326.jpg?v=1774730448"},{"product_id":"used-celestron-starsense-autoalign-system-25","title":"Used Celestron StarSense AutoAlign System","description":"\u003cdiv class=\"product-summary rte\"\u003e\n\u003cdiv\u003eThis is a StarSense unit in excellent condition:  the optics are clean, the body is unmarked.  Everything is present as you see in the photos.  Comes in its original box.  \u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003eHowever, the previous owner glued a piece onto the bottom of the bracket piece that wraps around the camera that won't come out.  See the photos.  We have discounted the price accordingly.  If you don't need to use this piece, then you'll save some money.  Enjoy!  \u003c\/div\u003e\n\u003cdiv\u003e  \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e   \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eEnables automatic alignment of your Celestron computerized telescope. See a full list of compatible telescopes below.\u003c\/li\u003e\n\u003cli\u003eNo need to identify or locate any star in the sky–StarSense automatically aligns your telescope, so you can begin observing in minutes.\u003c\/li\u003e\n\u003cli\u003eAligns in 3 minutes or less\u003c\/li\u003e\n\u003cli\u003eProvides advanced mount modeling—align on numerous stars throughout the sky for extremely precise GoTo pointing accuracy\u003c\/li\u003e\n\u003cli\u003eStarSense hand controller included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"icon-list-wrap\"\u003e\n\u003cp class=\"icon-list-heading\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/jXw_eqReWCA\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"icon-list-heading\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/OqqoFZyxzQg\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"icon-list-heading\"\u003eBecome an instant astronomer, even if you’ve never used a telescope before, with the one-of-a-kind StarSense AutoAlign. Just set up the accessory, push the Align button on the hand control, and StarSense begins capturing and comparing images of the night sky against its internal database. In about three minutes, it's gathered enough information to triangulate its position and align itself. Then, press the Sky Tour button: StarSense will automatically slew to all the best stars, planets, galaxies, and more currently visible in the night sky.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow it Works\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe self-alignment technology behind our award-winning SkyProdigy series is now available for all of Celestron's current computerized telescopes and backwards compatible with many older models as well. (See compatibility list below.)\u003c\/p\u003e\n\u003cp\u003eA small digital camera takes the place of your finderscope and attaches using one of two provided mounting brackets. The included StarSense hand control, with a database of over 40,000 celestial objects, takes the place of your NexStar hand control. The camera automatically captures a series of images of the sky. StarSense identifies the stars in the images, matching them to its database. Once a positive match is confirmed, StarSense calculates the coordinates of the center of the captured image, thereby determining exactly where the telescope is pointed.\u003c\/p\u003e\n\u003cp\u003eBefore StarSense, using a computerized telescope required a lengthy alignment process of finding and centering at least two bright stars in the telescope’s eyepiece. But StarSense automatically aligns itself with minimal user input. Just enter your time, date, and location and let StarSense do the rest!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Mount Modeling\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEven the most advanced telescope users will love using StarSense AutoAlign. This affordable accessory replaces the software usually used for advanced mount modeling.\u003c\/p\u003e\n\u003cp\u003eWith built-in mount modeling, you'll get superior pointing accuracy from horizon to horizon. When your alignment needs to be perfect, add up to 10 additional calibration stars to achieve a new level of accuracy, great for locating objects in the camera’s field of view for astroimaging.\u003c\/p\u003e\n\u003cp\u003e StarSense camera field of view: 6.88º x 5.16º\u003c\/p\u003e\n\u003ch3\u003eStarSense Compatibility List\u003c\/h3\u003e\n\u003cp\u003eAny mount with 5.x or greater firmware is compatible with the software\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ctable class=\"compatibility-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eCompatible\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdvanced VX\u003c\/td\u003e\n\u003ctd\u003eCGX-L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAstro Fi\u003c\/td\u003e\n\u003ctd\u003eCPC, CPC DX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCG-5 (with\u003cspan\u003e \u003c\/span\u003eCG-5 Aux. splitter)\u003c\/td\u003e\n\u003ctd\u003eNexStar Evolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCGE\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003eNexStar GT (2015 models and newer with \u003c\/span\u003eAux. splitter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCGE Pro\u003c\/td\u003e\n\u003ctd\u003eNexStar SE Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCGEM II\u003c\/td\u003e\n\u003ctd\u003eNexStar SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCGEM, CGEM DX\u003c\/td\u003e\n\u003ctd\u003eSkyProdigy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCGX\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"compatibility-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eNot Compatible\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNexStar i Series\u003c\/td\u003e\n\u003ctd\u003eNexStar GPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltima 2000\u003c\/td\u003e\n\u003ctd\u003eEarly generation GoTo mounts (such as Compustar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLCM series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003e Specifications\u003c\/h4\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003ctable data-mce-fragment=\"1\" id=\"product-specs-list\" class=\"table-open\"\u003e\n\u003cthead data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCAMERA INFORMATION:\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-mce-fragment=\"1\" id=\"spec-block-1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eImaging Sensor:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eAptina MT9M034 1 .2 Megapixel CMOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003ePixel Array:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1280 x 960\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003ePixel Size:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e3 .75μm x 3 .75μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eObjective Lens Diameter:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e2-Element 20mm (0.78\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eObjective Lens Focal Length:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e40mm (1.57\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eObjective Lens Focal Ratio\/F-stop:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003ef\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eControl Board:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e32-bit processor with embedded Linux Operating System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eUSB Port:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eUSB 2 .0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eAuxiliary Port:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eConnects to Celestron telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eHAND CONTROLLER INFORMATION:\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-mce-fragment=\"1\" id=\"spec-block-2\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eObject Database:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e45,178\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eLCD:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRed backlit 4 Line LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eCPU:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eSTMicro ARM 32-bit Cortex™-M3 CPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eSoftware and Firmware:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eFully upgradable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRS-232 Port:\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003ePC connectable for software\/firmware upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47923031146755,"sku":"U2604-RB-94005","price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/7a8ebe3b-49d7-4e79-90bc-b47399bf01bb.jpg?v=1777505799"},{"product_id":"used-smc-xw-3-5mm-eyepiece-1-25","title":"Used SMC XW 3.5mm Eyepiece (1.25\")","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eExcellent condition with clean optics and body. Includes caps, bolt case, and comes in its original box.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClear, comfortable viewing assured by 70° apparent angle of view and 20mm eye relief\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePENTAX XW-series line up features an extra-wide 70-degree apparent angle of view with an extra-long 20mm eye relief to deliver an exciting wide-perspective image.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-grade optics for exceptional image quality\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe high-performance XW-series optics incorporates high-refraction, extra-low-dispersion lanthanum glass elements to produce a well-balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003ePENTAX-original multi-layer coating for outstanding light transmission efficiency\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eAll lens surface that come in contact with air are treated with the original multi-layer coating, while all laminated surfaces are treated with the innovative partial coating. to offer the light transmission efficiency of more than 90 percent (96 percent at 550nm) over the visible light spectrum.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced light-shielding technology for improved image contrast\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThanks to PENTAX’s advanced computer simulation technology, the XW series features a light-shielding diaphragm at the most effective position to drastically reduce internal reflections for a brighter, higher-contrast image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWeatherproof construction for all-weather viewing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe XW series features JIS Class 4 weatherproof construction,* making it possible to use it in drizzle or under night dew.\u003cbr\u003e* The XW-series eyepieces are not designed for underwater use and should not be submerged under water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentax","offers":[{"title":"Default Title","offer_id":47932858761475,"sku":"U2603-BM-70511","price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/15fe820e-c18f-41de-a736-a29a22db8f97.jpg?v=1775934919"},{"product_id":"used-tele-vue-dioptrx-astigmatism-correcting-lens-1-5","title":"Used Tele Vue Dioptrx Astigmatism Correcting Lens 1.5","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used Tele Vue Dioptrx 1.5 astigmatism correcting lens. It is in excellent condition with clean optics.  This includes one dust cap, and comes in the original box. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003cp\u003eThe Tele Vue Dioptrx Astigmatism Correcting Lens is a special corrector lens, which can be attached and locked onto the tops of over 20 long eye-relief Tele Vue eyepieces to achieve the sharpest full-field viewing possible. The Dioptrx series of lenses are used specifically to compensate for your eye's astigmatism.\u003c\/p\u003e\n\u003cp\u003eTele Vue Dioptrx models are available in 0.25 diopter steps, from 0.25 up to 3.5 diopters, and are rotatable for tuning to the best orientation. A series of engraved letters on the barrel helps to monitor their orientation. Simply choose the Dioptrx model that matches your eyeglass prescription for astigmatism.\u003c\/p\u003e\n\u003cp\u003eTo overcome the common vision limitation called astigmatism, which the majority of people have, Tele Vue has developed a corrector which fits directly onto the eyepiece. Previously, the only way to correct for this was by wearing eyeglasses. That is, until now! Tele Vue Dioptrx Astigmatism Correcting Lenses extract the maximum visual performance you can get from your telescope and eyepieces. All the Dioptrx lenses are multi-coated glass in anodized aluminum housings, with rubber eyeguards for comfort.\u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eRecommended for Correcting These Tele Vue Eyepieces:\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003e31 mm Nagler type 5\u003c\/li\u003e\n\u003cli\u003e26 mm Nagler type 5\u003c\/li\u003e\n\u003cli\u003e41 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e35 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e27 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e22 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e55 mm Plossl\u003c\/li\u003e\n\u003cli\u003e40 mm Plossl\u003c\/li\u003e\n\u003cli\u003e32 mm Plossl\u003c\/li\u003e\n\u003cli\u003eAll Radians (18 mm thru 3 mm)\u003c\/li\u003e\n\u003cli\u003eAll Nagler type 4 (22 mm, 17 mm, 12 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ccenter\u003e\n\u003ch2\u003eTo Choose a Dioptrx Correcting Lens:\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eFirst, look at your eyeglass prescription for any astigmatism in your dominant eye, which is the one you primarily use for observing\u003c\/li\u003e\n\u003cli\u003eSecond, note the longer focal length of your Tele Vue eyepieces that apply, and obtain a Dioptrx lens for that value of astigmatism on your prescription.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eObservers do not need eyeglasses to compensate for near- or far-sightedness, since telescopes can focus out these limitations. Furthermore, other eyeglass characteristics, such as bi-focal, tri-focal, or vari-focal (progressive) designs are severely detrimental when trying to view a large field at infinity. In the past, it was recommended to get a special pair of \"astronomy-only\" eyeglasses that only has your astigmatism correction and multi-coatings. It is suggested to follow a procedure to determine at what size exit pupil your astigmatism needs correction, since at higher powers (with their smaller exit pupils) eyeglasses may not even be necessary. Note: large exit pupils are typical for viewing with large aperture instruments, such as Dobsonians, and for wide angle viewing with small refractors.\u003c\/p\u003e\n\u003cp\u003eTele Vue has found that 2 diopters of eyesight astigmatism is detectable down to a 1 mm exit pupil, while 1 diopter is detectable at a 2 mm exit pupil. Dioptrx lenses, therefore, obviate the need for dedicated \"astronomical eyeglasses\". The primary benefit is the potential for optimized correction in the amount and orientation of eyesight astigmatism in astronomical viewing. The ability to compensate for both orientation and astigmatism, as your eyesight changes, is another advantage. And, they eliminate eyeglass frame and discomfort problems when viewing with your telescope.\u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":47966365188355,"sku":"U2603-BM-DRX-150","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/6a94985c-32d5-4e07-b190-af2018dfe421.jpg?v=1776799379"},{"product_id":"used-tele-vue-dioptrx-astigmatism-correcting-lens-0-25","title":"Used Tele Vue Dioptrx Astigmatism Correcting Lens 0.25","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used Tele Vue Dioptrx 0.25 astigmatism correcting lens. It is in excellent condition with clean optics.  This includes one dust cap, and comes in the original box. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003cp\u003eThe Tele Vue Dioptrx Astigmatism Correcting Lens is a special corrector lens, which can be attached and locked onto the tops of over 20 long eye-relief Tele Vue eyepieces to achieve the sharpest full-field viewing possible. The Dioptrx series of lenses are used specifically to compensate for your eye's astigmatism.\u003c\/p\u003e\n\u003cp\u003eTele Vue Dioptrx models are available in 0.25 diopter steps, from 0.25 up to 3.5 diopters, and are rotatable for tuning to the best orientation. A series of engraved letters on the barrel helps to monitor their orientation. Simply choose the Dioptrx model that matches your eyeglass prescription for astigmatism.\u003c\/p\u003e\n\u003cp\u003eTo overcome the common vision limitation called astigmatism, which the majority of people have, Tele Vue has developed a corrector which fits directly onto the eyepiece. Previously, the only way to correct for this was by wearing eyeglasses. That is, until now! Tele Vue Dioptrx Astigmatism Correcting Lenses extract the maximum visual performance you can get from your telescope and eyepieces. All the Dioptrx lenses are multi-coated glass in anodized aluminum housings, with rubber eyeguards for comfort.\u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eRecommended for Correcting These Tele Vue Eyepieces:\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003e31 mm Nagler type 5\u003c\/li\u003e\n\u003cli\u003e26 mm Nagler type 5\u003c\/li\u003e\n\u003cli\u003e41 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e35 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e27 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e22 mm Panoptic\u003c\/li\u003e\n\u003cli\u003e55 mm Plossl\u003c\/li\u003e\n\u003cli\u003e40 mm Plossl\u003c\/li\u003e\n\u003cli\u003e32 mm Plossl\u003c\/li\u003e\n\u003cli\u003eAll Radians (18 mm thru 3 mm)\u003c\/li\u003e\n\u003cli\u003eAll Nagler type 4 (22 mm, 17 mm, 12 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ccenter\u003e\n\u003ch2\u003eTo Choose a Dioptrx Correcting Lens:\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eFirst, look at your eyeglass prescription for any astigmatism in your dominant eye, which is the one you primarily use for observing\u003c\/li\u003e\n\u003cli\u003eSecond, note the longer focal length of your Tele Vue eyepieces that apply, and obtain a Dioptrx lens for that value of astigmatism on your prescription.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eObservers do not need eyeglasses to compensate for near- or far-sightedness, since telescopes can focus out these limitations. Furthermore, other eyeglass characteristics, such as bi-focal, tri-focal, or vari-focal (progressive) designs are severely detrimental when trying to view a large field at infinity. In the past, it was recommended to get a special pair of \"astronomy-only\" eyeglasses that only has your astigmatism correction and multi-coatings. It is suggested to follow a procedure to determine at what size exit pupil your astigmatism needs correction, since at higher powers (with their smaller exit pupils) eyeglasses may not even be necessary. Note: large exit pupils are typical for viewing with large aperture instruments, such as Dobsonians, and for wide angle viewing with small refractors.\u003c\/p\u003e\n\u003cp\u003eTele Vue has found that 2 diopters of eyesight astigmatism is detectable down to a 1 mm exit pupil, while 1 diopter is detectable at a 2 mm exit pupil. Dioptrx lenses, therefore, obviate the need for dedicated \"astronomical eyeglasses\". The primary benefit is the potential for optimized correction in the amount and orientation of eyesight astigmatism in astronomical viewing. The ability to compensate for both orientation and astigmatism, as your eyesight changes, is another advantage. And, they eliminate eyeglass frame and discomfort problems when viewing with your telescope.\u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":47966388453635,"sku":"U2603-BM-DRX-025","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/97fcaa26-fdf2-4577-98ff-92abd328ed9a.jpg?v=1776808464"},{"product_id":"used-celestron-e-lux-eyepiece-and-filter-kit-3","title":"Used Celestron 2\" E-Lux Eyepiece and Filter Kit (NO CASE, DIAG)","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cdiv\u003eThis is a Celestron 2'' E-Lux eyepiece and filter kit in excellent condition. The glass is clean, the bodies of the eyepieces and filters are unmarked.  However, this does not include a) the 2\" diagonal, or b) \u003cspan data-mce-fragment=\"1\"\u003ethe metal carry case.  See the photos for what's included.  We have discounted the price accordingly to reflect these missing components.  \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe eyepieces\/barlow each have both of their dust caps, and the filters are in their original jewel cases.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch4\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e \u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThree E-Lux 2” eyepieces, a 2” 2X Barlow Lens, five colored filters to improve observations of the planets\u003c\/li\u003e\n\u003cli\u003eCelestron E-Lux eyepieces are a 3-element, fully multi-coated design.  You’ll get a 26 mm, a 32 mm, and a 40 mm, for a great choice of magnification and field of view.  Multiply your options by 2X when you use your 2” eyepieces with the included 2X Barlow.\u003c\/li\u003e\n\u003cli\u003eThe most popular planetary filters are included in this kit.  They are threaded to attach to most any 2” eyepiece or accessory.   \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGet more light to your eye and enjoy the low power, wide field views of 2” eyepieces with the Celestron 2” Eyepiece \u0026amp; Filter Kit. It’s a great way to expand the functionality and enjoyment of your telescope. As long as you have a Schmidt-Cassegrain, Newtonian, or a refractor that sports a 2” focuser, you’re good to go.  \u003c\/p\u003e\n\u003cp\u003eInside the metal, foam-lined carry case you’ll find these accessories:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e26 mm E-Lux Eyepiece - 2”\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e32 mm E-Lux Eyepiece - 2”\u003c\/li\u003e\n\u003cli\u003e40 mm E-Lux Eyepiece - 2”\u003c\/li\u003e\n\u003cli\u003e2X Barlow Lens - 2”\u003c\/li\u003e\n\u003cli\u003e#80A Blue Filter - 2”\u003c\/li\u003e\n\u003cli\u003e#58 Green Filter - 2”\u003c\/li\u003e\n\u003cli\u003e#25 Red Filter - 2”\u003c\/li\u003e\n\u003cli\u003e#21 Orange Filter - 2”\u003c\/li\u003e\n\u003cli\u003e#12 Deep Yellow Filter - 2”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEyepieces\u003c\/em\u003e - All three Celestron E-Lux eyepieces can be used in any telescope with a 2” focuser. Each eyepiece features a three-element design with a 56º apparent field of view (40 mm has a 50º field of view). The optics are fully multi-coated to improve light transmission and protect the optics. The 40 mm E-Lux eyepiece offers the lowest power option, for those times when you need all the light-gathering your telescope can offer to see faint deep-sky objects. The 26 mm \u0026amp; 32 mm focal lengths provide a bit more magnification. Experiment on your favorite objects to see which you like best.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e2X Barlow Lens\u003c\/em\u003e - The included, and very versatile 2X Barlow doubles the magnification of any 2” eyepiece, or, you can drop in a 2” to 1.25” adapter (not included), and use your 1.25” eyepieces in it as well. Since this kit includes three 2” eyepieces, you will be able to use them with and without the Barlow, giving you a total of six magnification options in all. Get the benefit of a 2” barrel with the magnification normally reserved for 1.25” eyepieces. The 40 mm will magnify like a 20 mm, the 32 mm like a 16 mm, and the 26 mm will do the work of a 13 mm.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFilters\u003c\/em\u003e - Colored filters bring out details on a planet’s surface or its cloud structure. All of the planetary filters included in the Eyepiece \u0026amp; Accessory Kit can be used on any 2” eyepiece or accessory with the proper filter threads, so they are very versatile. Just screw one onto your eyepiece of choice and slide it into the focuser.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47966712398083,"sku":"U2603-SZ-94305","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/8ade35c7-d204-427f-a67b-ace3fb0eed3b_1.jpg?v=1776812009"},{"product_id":"used-orion-giantview-100-degree-9mm-eyepiece","title":"Used Orion GiantView 100-degree 9mm eyepiece","description":"\u003ch4\u003eCondition: Used, in very good condition, with clear optics and some slight markings on the bottom of the barrel. Includes both end caps. \u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eDescription: \u003cmeta charset=\"utf-8\"\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eDual 1.25\" and 2\" 9mm eyepiece with huge 100-deg apparent field of view (AFOV)\u003c\/li\u003e\n\u003cli\u003eFully multi-coated lenses with blackened edges for maximum transmission and contrast\u003c\/li\u003e\n\u003cli\u003e16mm eye relief\u003c\/li\u003e\n\u003cli\u003eThreaded to accept standard 2\" astronomy filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eOrion offers its GiantView Ultra-Wide telescope eyepieces in 9mm and 16mm focal lengths. Each weighs 15.2 ounces (431 grams) and fits 2″ focusers. The 9mm eyepiece has a removable 2″ barrel, so it also fits 1¼” focusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eEyepiece SeriesMWA (Mega Wide Angle)\u003c\/p\u003e\n\u003cp\u003eFocal Length9mm\u003c\/p\u003e\n\u003cp\u003eBarrel Size1.25\" (31.7mm) and 2\" (50.8mm)\u003c\/p\u003e\n\u003cp\u003eApparent Field of View (Mfg Specified)100°\u003c\/p\u003e\n\u003cp\u003eEye Relief (Designed)16mm\u003c\/p\u003e\n\u003cp\u003eFilter ThreadsStandard 2\" Filter Thread (M48 x 0.75)\u003c\/p\u003e\n\u003cp\u003eCoatingsFully Multi-Coated\u003c\/p\u003e\n\u003cp\u003eLens Elements6\u003c\/p\u003e\n\u003cp\u003eLens Groups4\u003c\/p\u003e\n\u003cp\u003eBlackened Lens EdgesYes\u003c\/p\u003e\n\u003cp\u003eBarrel TypeSmooth sided\u003c\/p\u003e\n\u003cp\u003eManufacturer SuppliedHeight (With Eyeguard Extended)4.76\" (121mm)\u003c\/p\u003e\n\u003cp\u003eEnd Caps2Rubber Eye GuardYes\u003c\/p\u003e\n\u003cp\u003eWeight14.6 oz\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Orion","offers":[{"title":"Default Title","offer_id":47966762336515,"sku":"2603-SZ-9mm100","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/bda5c443-3bd1-4373-a1dc-703e1b618027.jpg?v=1776815205"},{"product_id":"used-celestron-oxygen-iii-narrowband-filter-2","title":"Used Celestron Oxygen III Narrowband Filter - 2\"","description":"\u003cdiv\u003eThis is a 2\" Celestron O-III filter in excellent, clean condition.  Comes in its original jewel box.  \u003c\/div\u003e\n\u003cdiv\u003e    \u003c\/div\u003e\n\u003cdiv\u003e    \u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e    \u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eThe 2\" OIII narrowband filter isolates the two doubly-ionized oxygen lines (496 and 501 nm lines)\u003c\/li\u003e\n\u003cli\u003eFilter has ultra-hard, vacuum-deposited coating\u003c\/li\u003e\n\u003cli\u003eEliminates un-natural colored halos surrounding bright stars\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 2\" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501 nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between the black sky background and the faint photons of OIII light needed for detailed views of the Veil, Ring, Dumbbell, Crescent and Orion nebulae, among other objects.\u003c\/p\u003e\n\u003cp\u003eEach filter has an ultra hard, vacuum-deposited coating carefully designed to block all of the visual spectrum ranging from 400 to 700 nm This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47967137530115,"sku":"U2603-SZ-93624","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/38c9062d-8f57-4063-9304-c00fd87e8d30.jpg?v=1776817227"},{"product_id":"used-idas-lps-p2-52mm-filter-mbt-igad","title":"Used IDAS LPS-P2 52mm filter (MBT \u0026 IGAD)","description":"\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: This is a used IDAS light pollution suppression filter in great condition. The optics are clean and it comes in its jewel case. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLight pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly emission nebulae.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike other light pollution suppression filters, IDAS filters are specifically designed for balanced color transmission using the IDAS unique \u003cb\u003eMulti-Bandpass Technology\u003c\/b\u003e (MBT) process. The balanced transmission allows color photographs to be taken with minimal color cast to broadband emission objects such as stars, galaxies and globular clusters. The comparison photos at right demonstrate (qualitatively) that the IDAS filter maintains better color balance than other filters which have been designed for visual use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLPS filters utilize the unique IDAS Ion Gun Assisted Deposition (IGAD*) coating technology for superior coating durability (quartz hardness) and safer cleaning. IGAD coatings also improve temperature and humidity stability of the filter performance, reducing spectrum shifts down to +\/-1nm from the +\/-3 or 4nm shift of standard coatings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCCD imaging can also benefit, because although CCD imagers can already shoot through light pollution to some extent, including an LPS filter to the setup gives an added (signal-to-noise) edge.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNote, however, that light pollution suppression filters are \u003c\/span\u003e\u003cspan\u003enot\u003c\/span\u003e\u003cspan\u003e a perfect substitute for dark skies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLPS filters are available for 1-1\/4\" and 2\" (48mm) eyepieces, as well as in numerous sizes to accomodate most popular camera lenses. Each filter lot is tested and a plot of the spectral response of the lot is provided with each filter. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/tokai1_large.gif?10873360616383643319\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e[Above] Spectral response (% transmission vs. wavelength in nanometers) of the IDAS Light Pollution Suppression filter. Major emission lines generated by artificial lighting are also indicated. Note that this plot represents the spec target for LPS filters. The spectral response of each individual filter will vary. This is measured, plotted, and shipped with each filter produced:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/idas-p2_1024x1024.gif?7115251255644343845\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAbove is a sample of the filter lot data plot which is shipped with each filter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe IDAS production criteria for filters are as follows, arranged from left to right (short to long wavelength) as plotted above:\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"scrollable-wrapper\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003eWavelength (nm)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e\u003cspan\u003ePass\/Block\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e\u003cspan\u003eTransmission\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e365\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e405\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e60% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e436\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e92% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e546\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e75% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e590\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e75% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e623\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e25% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\"\u003e80% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/tokai2_large.gif?10873360616383643319\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e[Above] Off-axis spectral response (% transmission vs. wavelength in nanometers) of the IDAS filter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Astro-Hutech","offers":[{"title":"Default Title","offer_id":47967443681539,"sku":"U2603-SZ-LPS-P2","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/d3366c3f-a229-4ad7-9871-6ff63a6c0280.jpg?v=1776817997"},{"product_id":"used-astronomik-cls-ccd-full-frame-clip-filter-for-canon-eos","title":"Used Astronomik CLS CCD Full-Frame Clip Filter for Canon EOS","description":"\u003cp\u003eThis is an Astronomik CLS CCD full-frame clip filter for a Canon EOS camera.  It is in excellent condition:  the optics are clean and the body is unmarked.  See the photos.  \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cspan\u003eThis comes in its original jewel box.  This is a bargain at \u003cstrong\u003ehalf-off\u003c\/strong\u003e and won't last!  \u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAny dust you see in the photos is easily removable - it seems that these filters develop an electrostatic charge such that the dust in the air is just attracted to the filter.  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch3 class=\"heading product-view__title\" data-ui-id=\"page-title-wrapper\"\u003eAstronomik CLS Canon EOS Clip Filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003eThis CLS Clip Filter features a Canon EOS Clip format designed for standard Canon EOS cameras which include an IR blocking filter over their detector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThe Astronomik CLS Clip Filter has transmission characteristics identical to the CLS Filter, and works with most Canon EOS Cameras (250D, 300D, 350D, 400D, 20D, 20Da, 30D, 40D)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAll normal functions of your Canon EOS camera will be unaffected by attaching this filter, including focus, image stabilization, etc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThis filter has been developed to block out as much artificial light as possible while, at the same time, enabling the best performance for useful wavelengths\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThe Astronomik CLS Filter is an excellent filter for imaging deep-sky-objects with telescopes or photo lenses of all apertures, working at f\/3 and above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eBlocks the light of mercury and sodium-vapor lamps spectral lines, making it a terrific light pollution filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMade in Germany, a country known for designing optics of high quality!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMore About the Astronomik CLS Canon EOS Clip Filter\u003c\/h3\u003e\n\u003cp\u003eFor astronomical use under light-polluted conditions, the Astronomik CLS Filter is suitable for use with standard Canon EOS DSLR Cameras. The CLS Filter further brings out the contrast between your target object and the background. Since this filter has a wider transmission curve when compared with UHC filters, the CLS will transmit more light. Stars will appear sharper. The Astronomik CLS Filter has been enhanced to simultaneously obstruct as much artifical light as possible while providing the finest performance for preferred wavelengths. This filter will not block long-wavelength Infrared light.\u003c\/p\u003e\n\u003cp\u003eBy blocking the spectral lines of mercury and sodium-vapor lamps, but letting a large percentage of the visible light and H-alpha emissions pass, the CLS filter will effectively block out most surrounding light pollution, which can spoil your images. The filters are optimized for use with lenses with all apertures, working at f\/3 and above.\u003c\/p\u003e\n\u003cp\u003eThe Astronomik EOS-Clip model filter enables astrophotography with DSLR cameras despite severe light-polluting conditions without white balance shift. All Astronomik filters are parfocal with all other Astronomik filters. Does not reduce optical effectiveness. This filter offers high resistance to scratches and the effects of aging, as well as high humidity. Astronomik filters come with a high-quality, durable, plastic storage case.\u003c\/p\u003e\n\u003ch3\u003eAstronomik EOS Clip Filter System\u003c\/h3\u003e\n\u003cp\u003eAstronomik's patented Clip Filter has been assembled from black anodized aluminum and laser-cut on the most advanced modern machines. Within seconds, it can be placed straight into the EOS camera body. No changes required and all lens functions (focus, screen, image stabilization) remain operational! Nearly all Canon system lenses (save for the EF-S series) and all M42 and T2 lens adapters, work with the Astronomik Clip-Filter. This system also serves as an excellent dust protector, preventing it from gathering on the sensor during long exposures.\u003c\/p\u003e\n\u003ch3\u003eTransmission Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e92% transmission at 486 nm (H-beta)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e92% transmission at 496 nm (OIII)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e92% transmission at 501 nm (OIII)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e97% transmission at 656 nm (H alpha)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003ePasses wavelengths from 450 nm to 540 nm and from 640 nm and above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003ePasses Infrared wavelengths\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eList of Compatible Canon EOS Cameras\u003c\/h3\u003e\n\u003ccenter\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003ccenter\u003e\u003cstrong\u003eCanon EOS\u003c\/strong\u003e\u003c\/center\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ccenter\u003e\u003cstrong\u003e Suitable for Clip-Filter? \u003c\/strong\u003e\u003c\/center\u003e\u003c\/th\u003e\n\u003cth\u003e\u003ccenter\u003e\u003cstrong\u003e LiveView? \u003c\/strong\u003e\u003c\/center\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e7D MkII\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e7D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e20D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eNo\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e20Da\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e30D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eNo\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e40D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e50D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e60D + 60Da\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e70D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e77D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e80D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e90D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e300D \/ Digital Rebel \/ Kiss Digital\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eNo\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e 350D \/ Digital Rebel XT \/ Kiss Digital N \u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eNo\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e 400D \/ Digital Rebel XTi \/ Kiss Digital X \u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eNo\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e450D \/ Rebel XSi \/ Kiss X2\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e500D \/ Rebel T1i \/ Kiss X3\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e550D \/ Rebel T2i \/ Kiss X4\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e600D \/ Rebel T3i \/ Kiss X5\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e650D \/ Rebel T4i \/ Kiss X6\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e700D \/ Rebel T5i \/ Kiss X7\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e750D \/ Rebel T6i \/ Kiss X8\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e760D \/ Rebel T7i \/ Kiss X9\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e1000D \/ Rebel XS \/ Kiss F\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e1100D \/ Rebel T3 \/ Kiss X50\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e1200D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e1300D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e2000D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e100D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e200D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccenter\u003e250D\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccenter\u003eYes\u003c\/center\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/center\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astronomik","offers":[{"title":"Default Title","offer_id":47977960210691,"sku":"U2603-SZ-AN-CLSCANON","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/73bf106b-e01d-4db3-8373-68c335bdef4a.jpg?v=1776878853"},{"product_id":"used-telrad-reflex-sight-it-works-no-mount-base-2","title":"Used Telrad Reflex Sight (It works!  No mount base)","description":"\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003eThis is a used Telrad reflex sight in good condition. \u003cstrong\u003eThis does not come with a mount base\u003c\/strong\u003e or a box, but includes the AA batteries that make it work. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Telrad is a favorite of amateur astronomers. \u003c\/p\u003e\n\u003cp\u003eThe main selling points are a real field of view with no magnification and no inversion, and the only graduated reticle image with 1\/2°, 2° and 4° increments which aids star hopping activities.  The image is focused at apparent infinity that in use gives the appearance of actually being in the star field. The reticle is also dimmable to allow use in both light polluted and dark sky conditions.\u003c\/p\u003e\n\u003cp\u003eMost people starting out with the Telrad Reflex Sight find it so easy to use that they use it exclusively in lieu of a finder scope.\u003c\/p\u003e\n\u003cp\u003eOperates on two AA batteries, not included.\u003c\/p\u003e","brand":"Telrad","offers":[{"title":"Default Title","offer_id":47978770661635,"sku":"U2603-SZ-1001","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/original-63.jpg?v=1771371477"},{"product_id":"used-ravelli-professional-70-tripod-w-pistol-grip-head-heavy-duty-carry-bag-apgl4","title":"Used Ravelli Professional 70\" Tripod w\/Pistol Grip Head + Bag [APGL4]","description":"\u003cp\u003eThis is a Ravelli APGL4 tripod in very good condition.  The tripod works perfectly, and is completely unmarked.  However, the pistol grip head has some play in it which probably makes it unusable for astronomy; you should replace it before use.  It should work just fine for terrestrial photography, however.  Includes tripod bag. \u003c\/p\u003e\n\u003cp\u003eThis is a great savings at almost half-off!  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"title_OMS5rN7R1Z\"\u003e\n\u003cdiv data-selenium=\"sellingPointsTitle\" class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle4_TAw0W35QK_ weightBold_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eIncludes Tripod Legs, Head, Quick Release Plate, and Carry Bag\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eUp to 70\" height\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eMade of high-grade aluminum and alloy steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eOne-handed angle adjustment lets you quickly squeeze, reposition, and lock your camera in place, making fast reframing simple for photo, video, events, and product shots.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"a-keyvalue prodDetTable\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eWeight Limit\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003e6.6 Pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eHead Type\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003ePistol Grip Head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"a-keyvalue prodDetTable\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eItem Weight\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003e3629 Grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eMaximum Height\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003e70 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eMinimum Height\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003e83.19 Centimeters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"a-keyvalue prodDetTable\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eColor\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003eSilver \/ Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eMaterial Type\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003eAlloy Steel, Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"a-color-secondary a-size-base prodDetSectionEntry\"\u003eMedia Type\u003c\/th\u003e\n\u003ctd class=\"a-size-base prodDetAttrValue\"\u003eImage, Video\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ravelli","offers":[{"title":"Default Title","offer_id":47979300913411,"sku":"U2603-SZ-RAVELLI","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/87d0ed50-5ba8-456d-bd6d-3a55cb6bbda3.jpg?v=1776891988"},{"product_id":"used-fli-ml1102m-2-monochrome-camera-w-cfw-2-7-filter-wheel-lrgbsho-filters","title":"Used FLI ML1102M-2 Monochrome 11MP camera w\/CFW 2-7 Filter wheel + LRGBSHO filters","description":"\u003ch3\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eHUGE PRICE DROP!  Was $2500.  Now just $1500!  \u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThis is a 15-year-old Finger Lakes DSO camera.  \u003cmeta charset=\"utf-8\"\u003eIt was way ahead of its time back then, and still packs a wallop of a punch:  11 megapixels of CCD goodness, 9 micron pixel size, and up to 55 degrees Celsius of active cooling!  The complete specs are below.  \u003c\/p\u003e\n\u003cp\u003eIt is in excellent shape, clean both inside and out.  It's an oldie but a goodie.  \u003c\/p\u003e\n\u003cp\u003eThis includes the CFW 2-inch 7-position filter wheel, which already has a complete set of LRGBSHO filters installed.  Unfortunately, the filters are not marked, so we don't have any additional information on the branding, bandpass width, etc.  \u003c\/p\u003e\n\u003cp\u003eThis also includes both of the original manuals for the camera and filter wheel, and all the power and connection cords.  The camera and filter each come in their own nice Pelican cases.  \u003c\/p\u003e\n\u003cp\u003ePlease call with any questions about this setup.  \u003cmeta charset=\"utf-8\"\u003eThere are no returns on this item. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eEach component of the MicroLine camera is designed and manufactured for a long life in the most demanding conditions. MicroLine download speeds are fast yet maintain the 16-bit resolution necessary to produce high quality images.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eSensor Type Interline\u003c\/p\u003e\n\u003cp\u003eTransfer CCD\u003c\/p\u003e\n\u003cp\u003eActive Pixels 4008 x 2672\u003c\/p\u003e\n\u003cp\u003ePixel Size (microns) 9 x 9 µm\u003c\/p\u003e\n\u003cp\u003eImaging Area (Diagonal) 36.1 X 24 mm (43.4 mm)\u003c\/p\u003e\n\u003cp\u003eFull Well Capacity (e-) 60,000 electrons\u003c\/p\u003e\n\u003cp\u003eCooling Method Air (Optional liquid) 0.004 eps at -35C\u003c\/p\u003e\n\u003cp\u003eInterface USB 2.0 \u003c\/p\u003e\n\u003cp\u003eDynamic Rang \u003cmeta charset=\"utf-8\"\u003e76.2 dB\u003c\/p\u003e\n\u003cp\u003eLens Mount Optional Nikon F-mount or Canon EOS\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eAnti-Blooming 1000X\u003c\/p\u003e\n\u003cp\u003eTechnical Data Sensor ON Semi KAI-11002\u003c\/p\u003e\n\u003cp\u003eMax. Cooling (Air) 55°C below ambient\u003c\/p\u003e\n\u003cp\u003eShutter Optional 65 mm\u003c\/p\u003e\n\u003cp\u003eDark Current (typical) \u003cmeta charset=\"utf-8\"\u003e0.004 eps at -35C\u003c\/p\u003e\n\u003cp\u003eDigitization Clock 2 MHz and 12 MHz\u003c\/p\u003e\n\u003cp\u003eTypical_Readout Noise 9 e- at 2 MHz; 14 e- at 12 MHz\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eWeight 3.96 lbs (1.8 kg)\u003c\/p\u003e\n\u003cp\u003eEnvironment -30°C to 45°C | 10% - 90% Relative Humidity\u003c\/p\u003e\n\u003cp\u003e12V (100-240V AC to 12V DC power supply included). With TEC off: \u0026lt;1A. TEC at 100%: 4.4A. Shutter open: 4A pulse for 100msec. Shutter held open, add 0.22A. Power\u003c\/p\u003e","brand":"Finger Lakes","offers":[{"title":"Default Title","offer_id":47979373461763,"sku":"U2604-SB-FLI","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/abed0f94-fcdc-4d0d-8108-f86bf5b6acfc.jpg?v=1776968132"},{"product_id":"used-sbig-st2000xm-w-cfw-8a-filter-wheel","title":"Used SBIG ST2000XM w\/CFW-8A Filter Wheel","description":"\u003ch3\u003eHUGE PRICE DROP!  Was $350.  Now just $200!  \u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is an unusual item - this is an SBIG ST-2000XM cooled camera with a built-in filter wheel, the CFW-8A, which is for 1.25\" filters.  The camera is about 15-20 years old, but is in good shape.  It has a 2MP sensor and 7.4 micron pixel size - the complete specs are below.  It actually has two sensors:  one for imaging, and the other for guiding:  it is a self-guiding camera. \u003c\/p\u003e\n\u003cp\u003eThis comes with the appropriate cables and power supply.  It comes in a great Pelican 1520 case, with foam - a $200 value all by itself.  So, you can think of this as getting a well-proven and time-tested camera for just $150. \u003c\/p\u003e\n\u003cp\u003eThere are no returns on this item. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003eST-2000XM and ST-2000XMI\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003ecameras are the same, except that the ST-2000XMI does not include the built-in TC-237H tracking CCD and some of the accessories that are included with the ST-2000XM (see the comparison table below).  In March of 2006 we also added the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/stremoteup.htm\"\u003eRemote Guide Head Port\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003eto both the single sensor ST-2000XMI and dual sensor ST-2000XM cameras.  Both versions use the same high quality interline CCD from Kodak, the KODAK DIGITAL SCIENCE™ KAI-2020M Image Sensor Megapixel Progressive Scan Interline CCD.  The KODAK DIGITAL SCIENCE\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eKAI-2020M is a high-performance multi-megapixel image sensor designed for a wide range of scientific, medical imaging, and machine vision applications. The 7.4 mm square pixels with microlenses provide high sensitivity and the large full well capacity results in high dynamic range. The vertical overflow drain structure provides antiblooming protection, and enables electronic shuttering for precise exposure control to 0.001 seconds.  Other features include low dark current, negligible lag and low smear.  The KAI-2020M CCD is a 2 megapixel progressive scan detector with an active image area of 1.92 million pixels.   The active image area is 1600 x 1200 pixels.  This array is 75% larger than the Sony CCD used in competitors' \"megapixel\" cameras, nearly as large as an\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/ST8XME.htm\"\u003eST-8XME\u003c\/a\u003e, and the ST-2000XM is a self-guiding camera, utilizing SBIG's patented dual sensor design. \u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cspan style=\"font-size: large;\"\u003eAlthough the imaging CCD is nearly the same size as the KAF-1603ME\u003c\/span\u003e\u003cbig\u003e\u003cspan\u003e \u003c\/span\u003eused in the ST-8XME, due to the smaller pixel size it contains nearly half a million more pixels than the ST-8XME. \u003c\/big\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable align=\"left\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg height=\"206\" width=\"253\" alt=\"image002.jpg (7152 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/image002.jpg\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#800000\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Times New Roman;\"\u003e\u003cstrong\u003eKAI-2020M 2 Megapixel CCD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eThe latest KAI-2020M 2 megapixel CCD retains the improved QE of the KAI-2001M and adds a high gain output amplifier that reduces the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Improved%20Read%20Noise%20and%20Dark%20Current\"\u003eread noise\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eby almost half compared to the previous CCD.  In addition to lower read noise, the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Improved%20(Reduced)%20Bright%20Points\"\u003ebright points\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003ehave been reduced by a factor of ~10X and our tests show the typical\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Improved%20Read%20Noise%20and%20Dark%20Current\"\u003edark current\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eis also reduced by approximately 2Xcompared to the previous versions of the CCD.  These same improvements are also found in the single shot color version of the CCD used in the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xcm_new.htm\"\u003eST-2000XCM color camera\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eas of July, 2004 (All ST-2000 monochrome and color cameras beginning with serial number 20407000 or higher).  Previously, Kodak improved the Quantum Efficiency of the 2000 series CCD when it upgraded the KAI-2000M to the KAI-2001M.  This higher \u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Improved%20Quantum%20Efficiency\"\u003e\u003cspan style=\"color: #800000;\"\u003ehigher QE\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eis retained in the new KAI-2020M, with approximately 25% to 40% higher QE (10% to 15% absolute) across the visible spectrum than the former KAI-2000M.  Also, In August, 2003, we switched to the larger\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Improved%20Autoguiding\"\u003e\u003cspan style=\"color: #800000;\"\u003eTC-237H built-in guiding CCD\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003einstead of the TC-211.  This improvement was the same as the upgraded autoguider installed on the larger ST-8XE, ST-9XE and ST-10XE cameras. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eIn May of 2004 SBIG began including a custom\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Deluxe%20Carrying%20and%20Storage%20Case\"\u003ePelican carrying and storage case\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewith the ST-2000XM and ST-2000XCM models.  This case is dustproof, waterproof and crushproof and carries a lifetime guarantee from Pelican.  As of the date of this announcement, we are also upgrading the version of\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#TheSky,%20Version%205,%20Level%20II%20from%20Software%20Bisque\"\u003eTheSky\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003esoftware by Software Bisque that we include with the ST-2000XM camera from version 4 to version 5, a $129 value.  If you have a Macintosh computer running OS-X we will even throw in\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Equinox%20Planetarium%20Software%20with%20SBIG%20Camera%20Control\"\u003eEquinox\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ecamera control and planetarium software for the Mac as well!  A Linux acquisition program is free and other Linux software is also available.  We continue to include CCDSoftV5 in addition to CCDOPS version 5 the most complete package of camera control, image processing, astrometric, star charting and planetarium software available with any new CCD camera from any manufacturer. \u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/st2000xm_new.htm#Upgrades\"\u003eUpgrades\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eare available for most of these improvements for older ST-2000XM camera owners.   All of these improvements have come at no additional increase in the price of the ST-2000XM camera since it was introduced.  In fact, the ST-2000XM is priced lower in 2005 than it was in 2004. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cbig\u003eThe full frame download time is approximately 4.5 seconds with our high speed USB electronics.   This camera is also fully compatible with all of our existing accessories such as the CFW8 filter wheel and AO-7 adaptive optics device.  The ST-2000XM has antiblooming protection and the quantum efficiency is comparable to the ABG versions of the enhanced full frame \"E\" detectors used in the former ST-7XE and ST-8XE cameras with a shift in the peak sensitivity toward the blue.  Compared to the ABG versions of the full frame \"E\" series cameras, the ST-2000XM is more sensitive in the blue and green, and slightly less sensitive in the red.  Moreover, because the ST-2000XM has two CCDs (a guiding CCD as well as an imaging CCD) in the same camera head, it is capable of self-guiding without any compromise in the quantum efficiency of the imaging CCD.  In other words, not only CAN it self-guide, it can do so without having to double the exposure time to compensate for the guiding feature.\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003ca name=\"Improved%20Read%20Noise%20and%20Dark%20Current\"\u003e\u003c\/a\u003e\u003cbig\u003e\u003cbig\u003eImproved Read Noise and Dark Current\u003c\/big\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"583\" bgcolor=\"#C0C0C0\" cellpadding=\"6\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"331\" bgcolor=\"#800000\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"108\" bgcolor=\"#800000\" align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eKAI-2000M\u003cbr\u003eKAI-2001M\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"96\" bgcolor=\"#800000\" align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eKAI-2020M\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"331\" bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eTypical Read Noise (rms) average\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"108\" bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e13.5 e-\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"96\" bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003e7.6 e-\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"331\" bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eTypical Dark Current (average e-\/p\/s at 0 deg. C )\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"108\" bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e0.18 e-\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"96\" bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003e0.06 e-\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"331\" bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eTypical Dark Current in the top 1% of pixels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"108\" bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e2.5 e-\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"96\" bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003e1.1 e-\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable cellpadding=\"3\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg height=\"375\" width=\"574\" alt=\"2020_ave_read_chart.gif (8942 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/2020_ave_read_chart.gif\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eThe average read noise has been reduced by almost half in the new KAI-2020M CCD.  Previous KAI-2000 series CCDs tested just under 14e- rms but the new KAI-2020M typically measures less than 8e-.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable cellpadding=\"3\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg height=\"373\" width=\"574\" alt=\"2020_ave_dark_chart.gif (11583 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/2020_ave_dark_chart.gif\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eMeasurements made of a number of cameras show that the previous CCDs had an average dark current of 0.13e-  and 0.18e- for the KAI-2000M and KAI-2001M respectively.  Tests of a similar sampling of cameras made with the new KAI-2020M CCD show an average dark current of 0.06e-. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable cellpadding=\"3\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg height=\"373\" width=\"573\" alt=\"2020_top_percent_chart.gif (10978 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/2020_top_percent_chart.gif\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eMeasurements of the dark current in the top 1% of pixels shows a dramatic improvement.  The previous detectors measured showed an average dark current in these pixels of around 2.5e- whereas the KAI-2020M measures on average only about 1.1e-. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eThe lower read noise, lower dark current and reduced bright points (see below) combine to significantly enhance the performance of this new CCD.  \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: x-large;\"\u003e\u003ca name=\"Improved%20(Reduced)%20Bright%20Points\"\u003e\u003c\/a\u003eReduced Bright Points\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" bgcolor=\"#C0C0C0\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#000000\" rowspan=\"3\"\u003e\u003cimg height=\"331\" width=\"824\" alt=\"dark_compare.jpg (191888 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/dark_compare.jpg\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eBright points are different from dark current.  Bright points are a population of brighter than average pixels.  A comparison of one minute dark frames from the KAI-2020M and KAI-2001M illustrates the effect of the ~10X reduction in bright points.  The KAI-2020M image is on the right, above.  In either case, the bright points are very effectively removed with a filter in CCDOPS and other programs, and whenever a dark frame is subtracted from a light frame.  The reduction in bright points does make a cosmetic improvement in unsubtracted images, however.  The larger 4 Megapixel KAI-4020M CCD, for example, is very similar in performance to the KAI-2020M, it has virtually the same CCD architecture, read noise and dark current, just more pixels.  To see some sample images taken with the 4020M CCD that are not dark subtracted,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/mb\/4020.htm\"\u003eclick here\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003ca name=\"Improved%20Quantum%20Efficiency\"\u003e\u003c\/a\u003e\u003cbig\u003e\u003cbig\u003eImproved Quantum Efficiency\u003c\/big\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable cellpadding=\"3\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg height=\"378\" width=\"577\" alt=\"2020_2001_qe_chart.gif (8970 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/2020_2001_qe_chart.gif\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eThe QE of the new KAI-2020M CCD used in the ST-2000M Camera since July 2004 is the same as the ST-2001M, in use since January 2003.  It is significantly higher across the visible spectrum than the former KAI-2000M CCD.  Typical of the Kodak interline CCDs, this improvement is greater towards the blue and green portion of the spectrum and smaller towards the red and near IR portion of the spectrum.  Nevertheless, the camera is quite capable of H-alpha imaging through a narrow band filter. \u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/mb\/Ha\/Ha2000.htm\"\u003eFor examples of some H-alpha images with the new CCD click here\u003c\/a\u003e.   The KAI-2001M CCD is used in all ST-2000XM cameras produced in 1993, up until July, 2004 (serial numbers beginning with 20301xxx and ending with 20406xxx).  The KAI-2020M CCD is used in cameras beginning with serial numbers 20407xxx. \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cbig\u003e\u003cbig\u003e\u003ca name=\"Improved%20Autoguiding\"\u003e\u003c\/a\u003eImproved Autoguiding\u003cspan\u003e \u003c\/span\u003ewith a Built-In TC-237H Autoguider\u003c\/big\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable bgcolor=\"#C0C0C0\" cellpadding=\"6\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#000000\" rowspan=\"3\"\u003e\u003cimg height=\"218\" width=\"228\" border=\"0\" alt=\"usb_autoguider3.jpg (38499 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/usb_autoguider3.jpg\"\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eBuilt-in\u003cbr\u003eAutoguider\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eArray\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePixel Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCCD Dimension\u003cbr\u003e--------\u003cbr\u003e( Area )\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eField of View\u003cbr\u003eat 80\" FL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eNumber of\u003cbr\u003ePixels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#E2E2E2\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eTC-237H CCD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e657 x 495\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003e7.4 x 7.4 u\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003e4.9 x 3.7 mm\u003cbr\u003e-----\u003cbr\u003e18.3 mm\u003csup\u003e2\u003c\/sup\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003e8.2 x 6.2\u003cbr\u003earcminutes\u003cbr\u003e( 51 arcmin\u003csup\u003e2\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003e325,215\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#E2E2E2\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eTC-211 CCD\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e192 x 164\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e~ 15 u\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e2.6 x 2.6 mm\u003cbr\u003e-----\u003cbr\u003e6.8 mm\u003csup\u003e2\u003c\/sup\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e4.5 x 4.5\u003cbr\u003earcminutes\u003cbr\u003e( 20 arcmin\u003csup\u003e2\u003c\/sup\u003e)\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#E2E2E2\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e31,000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eThe TC-237 autoguiding CCD is seen here just below the larger imaging CCD.  The TC-237H is the same CCD used in our $1300 ST-237A imaging camera and $2300 STV autoguider.  The TC-237H is 2.7X larger than the TC-211 CCD which means there is a more than double the chance you will find suitable guide stars anywhere you happen to be looking without having to hunt.  The sample images below demonstrate the difference in field of view.   \u003c\/span\u003e\u003c\/p\u003e\n\u003ctable height=\"25\" width=\"741\" bgcolor=\"#C0C0C0\" cellspacing=\"1\" cellpadding=\"6\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd height=\"17\" width=\"5\" bgcolor=\"#808080\"\u003e\u003cimg height=\"162\" width=\"190\" border=\"0\" alt=\"tc211tracker.jpg (18767 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/tc211tracker.jpg\"\u003e\u003c\/td\u003e\n\u003ctd height=\"17\" width=\"708\" bgcolor=\"#DDDDDD\"\u003e\n\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eField of View of TC-211 autoguider through an 8\" SCT at F\/7\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003csmall\u003e30 second unguided image centered on NGC 2903 taken with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTC-211\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etracking CCD.\u003c\/small\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003csmall\u003e192 x 164 pixels at ~15 microns (unbinned).\u003c\/small\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable height=\"254\" width=\"741\" bgcolor=\"#C0C0C0\" cellspacing=\"1\" cellpadding=\"6\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd height=\"246\" width=\"328\" bgcolor=\"#808080\"\u003e\u003cimg height=\"247\" width=\"328\" alt=\"tc237tracker.jpg (32391 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/tc237tracker.jpg\"\u003e\u003c\/td\u003e\n\u003ctd height=\"246\" width=\"397\" bgcolor=\"#DDDDDD\"\u003e\n\u003cstrong\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eField of View of TC-237 autoguider through an 8\" SCT at F\/7\u003c\/span\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003csmall\u003e30 second unguided image of the same area taken with the\u003c\/small\u003e\u003cbr\u003e\u003csmall\u003e\u003cstrong\u003eTC-237\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etracking CCD demonstrates the benefit of having 2.7X the\u003c\/small\u003e\u003cbr\u003e\u003csmall\u003efield of view:  An increase in the number of potential guide stars stars.\u003c\/small\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003csmall\u003e328 x 247 pixels at 14.8 microns (binned 2x2).\u003c\/small\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eIn the tracking configuration, the TC-237H CCD will normally be binned 2x2 for increased sensitivity.  When binned 2x2 the field of view remains 2.7X that of the TC-211 however as the pixel size is increased to 14.8 microns.  The user may also image with the TC-237 CCD in high resolution (unbinned) mode if desired.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eAs of March, 2006, both the single CCD and dual CCD models also come with the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/stremoteup.htm\"\u003eRemote Guide Head port\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor attaching an external guiding head.  ThsSky software from Software Bisque automatically generates finder charts showing the correct placement of the guiding CCD field of view relative to the imaging CCD's field of view.  Using this tool to plan your nights imaging is a great compliment to the self-guiding c\u003c\/span\u003e\u003cstrong\u003e\u003cspan style=\"font-family: Arial;\"\u003eameras.  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable cellpadding=\"6\" width=\"741\" bgcolor=\"#C0C0C0\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#808080\" width=\"228\"\u003e\u003cimg height=\"218\" width=\"228\" alt=\"usb_autoguider_sky4.jpg (36434 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/usb_autoguider_sky4.jpg\"\u003e\u003c\/td\u003e\n\u003ctd width=\"501\" bgcolor=\"#E0E0E0\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePreviously, the camera had to be oriented so that the X and Y dimensions of the tracking CCD were aligned with the RA and DEC of the telescope, limiting the possible rotation of the camera to four possible positions around a target at at 90 degree steps.  Now, with CCDSoftV5, the autoguiding capability of the TC-211 (and TC-237) is improved so that the camera may be placed in any orientation relative to the telescope's RA and DEC, allowing a full 360 degrees of rotation around a target for easier guide star acquisition.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: t; font-size: large;\"\u003eOf course, guiding with either the TC-211 or the TC237 tracking CCD means that the imaging CCD spends 100% of its time and quantum efficiency gathering the image.  You are not required to compromise for half the quantum efficiency or twice exposure time as you might with other self-guiding designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cbig\u003e\u003cbig\u003eUpgraded Software -\u003cspan\u003e \u003c\/span\u003e\u003ca name=\"TheSky,%20Version%205,%20Level%20II%20from%20Software%20Bisque\"\u003e\u003c\/a\u003eTheSky, Version 5, Level II from Software Bisque\u003c\/big\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"244\" width=\"480\" alt=\"TheSkyHead3.gif (43916 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/TheSkyHead3.gif\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eBeginning with all camera shipped in October, 2004, we will include TheSKy version 5, level II, instead of version 4.  TheSky version 5, level II, is a complete camera control, image processing, astrometric, star-charting and planetarium software program for the PC.  This is a full version of TheSky version 5, complete with manual on CD-ROM.  This is a $129 value at no additional cost.  Users of TheSky version 5 may upgrade to the latest version 6 at a discount. \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cbig\u003e\u003cbig\u003eNew -\u003cspan\u003e \u003c\/span\u003e\u003ca name=\"Equinox%20Planetarium%20Software%20with%20SBIG%20Camera%20Control\"\u003e\u003c\/a\u003eEquinoX Planetarium Software with SBIG Camera Control\u003cspan\u003e \u003c\/span\u003efor Mac OS X by Microprojects\u003c\/big\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable bgcolor=\"#C0C0C0\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#E1E1E1\"\u003e\u003cimg height=\"226\" width=\"311\" alt=\"equinox_SetupTab.jpg (44325 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/equinox_SetupTab.jpg\"\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cimg height=\"251\" width=\"396\" alt=\"EquinoXScreen_50.jpg (84965 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/EquinoXScreen_50.jpg\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eIf you use an Apple Macintosh G3, G4 or G5, with OS X 10.2 or later, Equinox 5.1 can control SBIG USB and Ethernet cameras.  SBIG will send a free copy of Equinox upon request to any new SBIG camera purchaser with proof of purchase.   Send us a copy of your invloce with camera serial number.  Click on the links below to the Microprojects web site for more information:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003ca href=\"http:\/\/www.microprojects.ca\/SBIGInfo.html\"\u003eSBIG camera control features and screen shots\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003ca href=\"http:\/\/www.microprojects.ca\/index.html\"\u003eFind out more about Equinox planetarium features\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003ca name=\"Deluxe%20Carrying%20and%20Storage%20Case\"\u003e\u003c\/a\u003e\u003cbig\u003e\u003cbig\u003eDeluxe Carrying and Storage Case\u003c\/big\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003ctable width=\"117\" bgcolor=\"#C0C0C0\" cellpadding=\"3\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"1\" bgcolor=\"#C0C0C0\"\u003e\u003cimg height=\"250\" width=\"334\" alt=\"wpe9.jpg (7450 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/st20001.jpg\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eThe ST-2000XM and ST-2000XCM models now include a high quality\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.company7.com\/library\/sbig\/sbwhtmls\/cases.htm\"\u003ecarrying and storage case\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003emade for SBIG by Pelican.   This deluxe carrying case is dust proof, water proof, crush proof and carries a lifetime guarantee from the manufacturer.  The custom cut foam securely holds the camera and power supply with additional spots for accessories, cables, etc.  There is even room for the camera with filter wheel and AO-7 attached. \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cbig\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cbig\u003e\u003ca name=\"Upgrades\"\u003e\u003c\/a\u003eUpgrades\u003cbr\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/big\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eUpgrades to a TC-237H autoguiding CCD are available to all previous ST-2000XM owners for $395.  Upgrades to the new KAI-2020M imaging CCD are available for $995 for owners of older cameras.  Upgrades from TheSky version 5 to the latest version 6 are available from\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.bisque.com\/\"\u003eSoftware Bisque\u003c\/a\u003e.  The custom Pelican carrying case is available for $149.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv align=\"right\"\u003e\n\u003ctable align=\"right\" bgcolor=\"#C0C0C0\" cellpadding=\"3\" cellspacing=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#800000\" colspan=\"3\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eST-2000XM Comparison Chart\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e \u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eST-2000XMI\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eST-2000XM\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e2 Megapixel KAI-2020M CCD\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eone class\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eone class\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eColumn defects allowed\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003enone\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003enone\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eHigh Speed USB Interface\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eInternal shutter for automatic dark frames\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eInternal ROM for CFW8A control\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eRegulated thermoelectric cooling with fan\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eUniversal Power Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eUSB Cable\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAdjustable t-thread interface block\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e2\" nosepiece with t-thread base\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCCDOPS ver.5 software on CD-ROM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCCDOPS ver.5 manual on CD-ROM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCamera Operating Manual\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eTheSky v.5, level II software on CD-ROM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eTC-237H Tracking CCD (657x495 at 7.4u)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$395\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCustom Pelican Carrying Case\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$149\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eWater Cooling Heat Exchanger\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$99\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eST-7RC Adapter and Relay Cable\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$9\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePrinted Camera Operating Manual\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$15\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Wingdings; font-size: small;\"\u003el\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePrinted CCDOPS ver.5 manual\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$15\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$15\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFC4\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e1.25\" Nosepiece\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$49\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFC4\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e$49\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cspan\u003e\u003cbig\u003eThe ST-2000XM is a complete camera \u003ca name=\"system\"\u003e\u003c\/a\u003esystem.  There is no need to add in the additional cost of an interface or an autoguider or a nosepiece or better software to make these cameras actually operate as they should.  Everything that is needed to make the camera operational is included in the base price.  We even include some non-essential, but desirable, items such as a custom hard carrying case.\u003c\/big\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cbig\u003e\u003cbig\u003eComplete Systems\u003c\/big\u003e\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eEach new ST-2000XM camera system INCLUDES at no additional cost:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eRugged camera body with imaging and autoguiding CCDs and new analog and digital electronics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003cstrong\u003e2 Megapixel KAI-2020M imaging CCD with reduced read noise, lower dark current and 10X reduced bright pixels.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003cstrong\u003eBuilt-in TC-237H CCD autoguider with 10X the sensitivity of an ST-4 (TC-211 prior to 8\/18\/03).\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003cstrong\u003eRemote Guide Head Port\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003cstrong\u003eHigh speed USB interface (up to 421,000 pixels per second)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eNew I\u003cstrong\u003e\u003csup\u003e2\u003c\/sup\u003e\u003c\/strong\u003eC bi-directional expansion port, compatible with the new CFW-10 filter wheel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eStandard accessory \/ telescope port\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eUser rechargeable desiccant plug (no need to return the camera to the factory for frosting problems)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\"Dummy\" desiccant plug for dust prevention during recharging procedure\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eInternal shutter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e2\" Nosepiece\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eCooling Fan - on\/off controlled by software\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eNew heat exchanger design with water cooling capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eTripod mount 1\/4-20 threaded side plate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eT-thread ring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e15 foot USB cable (third party USB extenders available for up to 500 meters!)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eAdapter plug for telescope interface cable (for autoguiding)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eTelescope interface cable (for autoguiding)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eUniversal 90-240VAC power supply with remote on\/off switch\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eSBIG's CCDOPS version 5 camera control software with new, updated, CCDOPS manual on CDROM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003cstrong\u003eSoftware Bisque's CCDSoftV5\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecamera control and image processing software\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003e\u003cstrong\u003eSoftware Bisque's TheSky version 5, level II, with manual on\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eCD-ROM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003ePrinted Camera Operating Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Times New Roman; font-size: large;\"\u003eCustom design hard carrying case with pre-cut foam for your camera and accessories.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ctable bgcolor=\"#C0C0C0\" cellspacing=\"1\" border=\"2\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" bgcolor=\"#800000\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Times New Roman; font-size: large;\"\u003e\u003cstrong\u003eOptional Accessories\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#808080\"\u003e\n\u003cp align=\"center\"\u003e\u003cimg height=\"244\" width=\"298\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/cfw9_50.jpg\" border=\"0\"\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#808080\"\u003e\u003cspan style=\"font-family: TimesNewRomanPSMT;\"\u003e\u003cimg height=\"279\" width=\"360\" src=\"http:\/\/www.company7.com\/library\/sbig\/products\/cfw10.jpg\" border=\"0\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#808080\"\u003e\u003cimg height=\"300\" width=\"400\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/ao8_med2.jpg\" border=\"0\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" bgcolor=\"#800000\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eCFW9 Five Position Color Filter Wheel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" bgcolor=\"#800000\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003eCFW10 Ten Posisiton Color Filter Wheel\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" bgcolor=\"#800000\"\u003e\u003cspan style=\"font-family: TimesNewRomanPSMT;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003eAO-8 Adaptive Optics\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#808080\"\u003e\u003cimg height=\"300\" width=\"400\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/baader\/baader_small_filters_25.jpg\" border=\"0\"\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#808080\"\u003e\n\u003cp align=\"center\"\u003e\u003cimg height=\"224\" width=\"253\" border=\"0\" alt=\"accessory_waterpump.jpg (37402 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/accessory_waterpump.jpg\"\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#808080\"\u003e\n\u003cp align=\"center\"\u003e\u003cimg height=\"224\" width=\"253\" alt=\"accessory_spectrograph1.jpg (37296 bytes)\" src=\"http:\/\/www.company7.com\/library\/sbig\/sbwgifs\/accessory_spectrograph1.jpg\"\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#800000\"\u003e\n\u003cp align=\"center\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003eLRGB, Narrowband and Photometric filters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#800000\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eSubmersible water pump and tubing\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#800000\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eSelf-Guided Spectrograph\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp align=\"center\" class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Times New Roman;\"\u003e\u003cstrong\u003e\u003cbig\u003e\u003cbig\u003e\u003ca name=\"ST-2000XM\"\u003e\u003c\/a\u003eST-2000XM\u003cspan\u003e \u003c\/span\u003e\/ XMI\u003c\/big\u003e\u003c\/big\u003e\u003cbr\u003e\u003cbig\u003eTypical Specifications\u003c\/big\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv align=\"center\"\u003e\u003ccenter\u003e\n\u003ctable cellspacing=\"0\" width=\"400\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#800000\" colspan=\"2\" align=\"left\" width=\"400\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eCCD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCCD\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  Kodak KAI-2020M +\u003cbr\u003e  TI TC-237\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePixel Array\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  1600 x 1200 pixels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCCD Size\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  11.8 x 8.9 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eTotal Pixels\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  2 million\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePixel Size\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  7.4 x 7.4 microns square\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eFull Well Capacity\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  ~45,000 e- unbinned\u003cbr\u003e  ~90,000 e- binned\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eDark Current\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  \u0026lt;0.1e-\/pixel\/sec at 0 deg. C.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAntiblooming\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  Standard\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/center\u003e\u003c\/div\u003e\n\u003chr width=\"70%\"\u003e\n\u003cdiv align=\"center\"\u003e\u003ccenter\u003e\n\u003ctable cellspacing=\"0\" width=\"400\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#800000\" colspan=\"2\" align=\"left\" width=\"400\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eReadout Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eShutter\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  Electromechanical\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eExposure\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  0.001 to 3600 seconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCorrelated Double Sampling\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  Yes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eA\/D Converter\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  16 bits\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eA\/D Gain\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  0.6e-\/ADU unbinned\u003cbr\u003e  0.9e-\/ADU binned\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eRead Noise\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  7.9e- rms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eBinning Modes\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  1 x 1, 2 x 2, 3 x 3\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePixel Digitization Rate\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  ~ 425kps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eFull Frame Download\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  ~ 4.5 seconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/center\u003e\u003c\/div\u003e\n\u003chr width=\"70%\"\u003e\n\u003cdiv align=\"center\"\u003e\u003ccenter\u003e\n\u003ctable cellspacing=\"0\" width=\"400\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#800000\" colspan=\"2\" align=\"left\" width=\"400\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003e\u003cstrong\u003eSystem Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCooling - standard\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  Single Stage Thermoelectric,\u003cbr\u003e  Active Fan, Water Assist\u003cbr\u003e  -45 C from Ambient Typical\u003cbr\u003e  with water, -35 C w\/air only\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eTemperature Regulation\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  ±0.1°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003ePower\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  5VDC at 1.5 amps,\u003cbr\u003e  +\/-12VDC at 0.5 amps,\u003cbr\u003e  power supply included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eComputer Interface\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  USB 1.1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eComputer Compatibility\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\n\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eWindows 98\/2000\/Me\/XP\u003cbr\u003e  Mac OS-X \/ Vista 32 bit\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eGuiding\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  Dual CCD Self-Guiding with\u003cbr\u003e  built-in TC-237 CC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/center\u003e\u003c\/div\u003e\n\u003chr width=\"70%\"\u003e\n\u003cdiv align=\"center\"\u003e\u003ccenter\u003e\n\u003ctable cellspacing=\"0\" width=\"400\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#800000\" colspan=\"2\" align=\"left\" width=\"400\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"color: #ffffff; font-family: Arial; font-size: small;\"\u003ePhysical Dimensions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eOptical Head\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  5 inches diameter x 3 inches\u003cbr\u003e  12.5 cm diameter x 7.5 deep\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCPU\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  All electronics integrated into\u003cbr\u003e  Optical Head, No CPU\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eMounting\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  T-Thread,\u003cbr\u003e  2\" nosepieces included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eWeight\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  Approx. 2 pounds\/0.9kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth bgcolor=\"#FFFFC4\" align=\"right\" width=\"200\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eBackfocus\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd bgcolor=\"#FFFFC4\" width=\"200\" align=\"left\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e  0.92 inches \/ 2.3 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/center\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ccenter\u003e\u003c\/center\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"SBIG","offers":[{"title":"Default Title","offer_id":47979462131971,"sku":"U2604-SB-ST2000XM","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/797bba79-9725-4c1c-a036-5bd9b0e2c4da.jpg?v=1776898976"},{"product_id":"used-c8-fastar-sct-ota-w-focus-motor-installed","title":"Used C8 Fastar SCT OTA w\/Focus Motor and Bob's Knobs installed","description":"\u003cdiv class=\"product-summary rte\"\u003e\n\u003cstrong\u003eCondition\u003c\/strong\u003e: \u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"product-summary rte\"\u003eThis is a black-tube Fastar C8 OTA in excellent condition, with clean optics and body.  This has the Celestron Focus Motor and Bob's Knobs already installed, and was well-used as an astrophotography scope - take a look at the bitemarks in the dovetail.  However, the optics are sparkling clean, with only the tiniest amount of speckling in the coatings in one small area.  See the photos.  \u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003eBecause this is for astrophotography, this does not include the stock finder, diagonal, 25mm Plossl, or visual back.  \u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003eThis is a great deal at $950, over FORTY PERCENT OFF and won't last!  \u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003eWe do not have the original packing boxes for this item, so \u003cstrong\u003ethis is for local pickup only.\u003c\/strong\u003e  \u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-summary rte\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e8\" Schmidt-Cassegrain Optical Tube Assembly\u003c\/li\u003e\n\u003cli\u003eStarbright XLT coatings\u003c\/li\u003e\n\u003cli\u003e2032 mm focal length (f\/10)\u003c\/li\u003e\n\u003cli\u003eFastar\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"product-summary rte\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 1.4em;\"\u003eSpecifications\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"icon-list-wrap\"\u003e\n\u003ctable style=\"width: 536px;\" class=\"table-open\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eAperture (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e203.2 mm (8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eDovetail Compatibility\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003eLosmandy Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e2032 mm (80 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eHighest Useful Magnification\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e480 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eLight Gathering Power (Comp...\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e843 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eLimiting Stellar Magnitude\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eLowest Useful Magnification\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e29 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eOptical Design\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003eSchmidt-Cassegrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eOptical Tube\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003eCelestron black tube\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eOptical Tube Length\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e17 in (432 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eOptical Tube Weight\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e12.5 lbs (5.67 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eResolution (Dawes)\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e0.57 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eResolution (Rayleigh)\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e0.69 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eSecondary Mirror Obstruction\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e9.77%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 277.781px;\"\u003eSecondary Mirror Obstruction\u003c\/td\u003e\n\u003ctd style=\"width: 241.219px;\"\u003e2.5 in (64 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":47979534942467,"sku":"U2604-RH-91024","price":950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/a01bbaf8-006b-4221-8100-3e3da453f895.jpg?v=1776902127"},{"product_id":"used-zwo-60mm-f-4-6-guidescope-w-1-25-helical-focuser","title":"Used ZWO 60mm f\/4.6 Guidescope w\/1.25\" Helical Focuser and ADM dovetail mount for SCT","description":"\u003cdiv\u003e\n\u003cstrong\u003eCondition\u003c\/strong\u003e: Very good condition, with clean optics that have only a tiny amount of spotting in the coatings on the objective.  The body is in excellent condition, without a mark. \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis includes the objective dust cap, ADM Vixen dovetail, and curved risers for attaching to an 8\" C8 SCT OTA (an $87 value), but no box.  \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThere are no returns on this item.  \u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDescription:\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e60mm guidescope refractor with multi-coated optics\u003c\/li\u003e\n\u003cli\u003e280mm focal length and f\/4.6 focal ratio;\u003c\/li\u003e\n\u003cli\u003eCNC-machined aluminum construction\u003c\/li\u003e\n\u003cli\u003e1.25\" rotatable helical focuser with 30mm travel\u003c\/li\u003e\n\u003cli\u003eComes with two adjustable mounting rings and dovetail\u003c\/li\u003e\n\u003cli\u003eWorks as lens for DSLR camera with brand-specific T-ring (not included)\u003c\/li\u003e\n\u003cli\u003eThe total weight 640 g (22.6 oz)\u003c\/li\u003e\n\u003cli\u003eBack focus: 15 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"prose\"\u003e\n\u003cp\u003eThis affordable and compact 60mm guidescope from ZWO mounts on nearly any telescope and lets you guide your long exposure images with ease. Featuring multi-coated f\/4.6 optics and solid CNC-machined aluminum construction, the guidescope comes with two mounting rings with a total of six alignment screws for easy adjustment. The included Vixen-style dovetail rail allows you to mount the guidescope on nearly any telescope and includes five 1\/4-20 mounting holes on the bottom for additional mounting flexibility. The guidescope weighs just 640 g (22.6 oz).\u003c\/p\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cp\u003eThe finder scope comes with a rotatable helical 1.25\" focuser with 30mm travel and is compatible with all ZWO ASI cameras. With a T-ring (not included), it can also work as a lens for your DSLR camera.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":47979669651715,"sku":"U2604-RH-ZWO60GS","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/a3a7e4d8-a84a-471e-91f8-4a76d1bfc447.jpg?v=1776903429"},{"product_id":"used-qsi-583wsg-8-8-3mp-cooled-ccd-camera-w-color-filter-wheel-and-guider-port","title":"Used QSI 583wsg-8 8.3mp Cooled CCD Camera w\/color filter wheel + guider port","description":"\u003ch3\u003eHUGE PRICE DROP!  Was $400.  Now just $250!  \u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: This is a used QSI583wsg cooled CCD camera that is about 15 years old.  But the specs are still good - 8.3 megapixels, an internal 5-position filter wheel, and an off-axis prism guider, as well as a separate external guideport.  \u003c\/p\u003e\n\u003cp\u003eThis includes a power supply, cable\/cord attachments, dust covers, and the original manual, and comes in a Pelican-type foam-lined hard-sided case.  \u003cmeta charset=\"utf-8\"\u003eThere are no returns on this item. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQSI 583wsg CCD Camera with Integrated Guider Port and Color Filter Wheel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe QSI 583 camera employs an 8.3 megapixel Kodak Enhanced Response full-frame CCD image sensor with microlens technology. The high quantum efficiency, wide dynamic range and low noise performance make the 532 ideally suited to a broad range of demanding astronomical, scientific and industrial imaging applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe KAF-8300 sensor has a photoactive array of 3326W x 2504H pixels. It has excellent quantum efficiency between 350nm and 1000nm with significant enhancement at the blue end of the spectrum. Low dark current and high pixel charge capacity result in a dynamic range exceeding 70db. The sensor employs a true two-phase charge transfer technology with a transparent gate that significantly increases optical response compared to traditional front illuminated full frame sensors. Micro lenses cover the surface of the CCD and focus the light through the transparent gate to further increase optical response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Shutter\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Model 583s incorporates the internal mechanical shutter in the 'mid-size' camera body configuration . The shutter is not only used for timing exposures, but can be left closed to produce 'dark frames' for subsequent image processing. Exposures can range from 0.03 seconds to 240 minutes.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e583ws adds Internal Color Filter Wheel\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Model 583ws adds an internal five position filter wheel to the camera in a 'full-size' camera body. The filter wheel accepts any standard 1.25\" filter and can be purchased with various filter configurations. The filter wheel can easily be removed and replaced to change or clean the glass filters. Additional filter wheels can be purchased allowing quick interchange of different filter set configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe close positioning of the internal filter wheel allows unvignetted images with scopes as fast as f\/4 using standard 1.25\" filters, or as fast as f\/2.8 utilizing the new unmounted 31mm filters. Save hundreds of dollars over cameras that require external filter wheels with larger diameter filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e583wsg adds Integrated Guider Port\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Model 583wsg camera has the internal mechanical shutter and color filter wheel like the 583ws, plus it adds an Integrated Guider Port. This allows guiding using the light from your main telescope while picking off the light from the guide star in front of the filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eThe Benefits of Scientific Imaging Performance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eQSI's scientific-grade CCD cameras deliver image quality equal to or better than cameras costing thousands more. The lower noise and other benefits of a QSI camera allow you to \u003cem\u003ecapture better data in less time\u003c\/em\u003e. What does scientific imaging performance really mean?  There are four key traits that distinguish a scientific camera:\u003c\/span\u003e\u003c\/p\u003e\n\u003col type=\"1\"\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHigh sensitivity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eLower Noise\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eLinear response to light\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePrecisely regulated cooling\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"http:\/\/telescopes.net\/store\/media\/wysiwyg\/\/QSI\/qsi_nebula.jpg\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eHigh Sensitivity\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHow sensitive a CCD it to light is expressed as its Quantum Efficiency (QE).  Higher QE means you can collect more photons in any given amount of time giving you better looking images with a higher Signal to Noise Ratio (SNR).  High sensitivity is almost purely a function of the CCD.  Just about any camera using the same CCD will achieve a similar sensitivity to light. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, even with the same CCD, the Signal to Noise Ratio between two different cameras can be dramatically different especially in the fainter, lower signal areas of an image.  These lower signal areas, such as the fringes of nebulae or dust lanes in a galaxy, often comprise some of the most interesting parts of astronomical images.  Maximizing the SNR in these dim areas is the key to revealing those otherwise hidden details.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLower Noise = Higher Dynamic Range \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003eNoise\u003c\/em\u003e in a CCD camera is uncertainty in the signal you’re trying to measure.  The lower the noise, the greater the dynamic range possible with any given CCD.  There are several types of noise that contribute to the overall noise in a CCD image.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCCD images are exquisitely sensitive to any noise introduced by the camera’s electronics.  Mitigating the electronic interference from the digital electronics and switching power supplies is one of the many challenges in designing and building a scientific grade CCD camera.  Any noise introduced by the camera is relatively easy to see by analyzing bias frames.  A \u003cem\u003eBias Frame\u003c\/em\u003e is a zero-length (dark) exposure which captures the slightly varying “floor value” from pixel to pixel (the bias) plus any noise added during the process of reading the image from the CCD.  By subtracting two bias frames, you can remove the underlying differences in the pixel bias leaving just the noise added to the image when it was read from the CCD.  This subtraction of two bias frames is called a \u003cem\u003eRead Noise Frame\u003c\/em\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"http:\/\/telescopes.net\/store\/media\/wysiwyg\/QSI\/qsi_bias_frame.jpg\" alt=\"\"\u003eComplicating the story is that some types of noise are tougher to deal with than others.  For instance, truly random noise that displays a Gaussian distribution can be reduced by combining images.  The graph to the right shows the histogram of a bias frame from a QSI camera overlaid over histograms from two other cameras using the same Kodak CCD. The histograms have been normalized for easy visual comparison. The histogram from the QSI camera displays a nearly perfect Gaussian distribution. The familiar\u003cem\u003ebell curve\u003c\/em\u003e resembles a parabola when displayed with a log scale. Standard deviation (σ) is shown for each histogram.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe parabolic shape of the histogram is important but you can't infer too much about the magnitude of the noise from the width of a histogram without knowing more about the cameras. Differences in width can be caused by higher noise or possibly just differences in a camera's gain settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAveraging together multiple bias frames can tell you more about the distribution of pixel values and make it easier to visually identify any non-Gaussian noise in the images\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"http:\/\/telescopes.net\/store\/media\/wysiwyg\/QSI\/qsi_bias_frame_1.jpg\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTo the left is a histogram comparing the average of 10 bias frames from a QSI 520i to a camera from another manufacturer with the same sensor taken at the same -10C temperature. The graph has the same scale as the one above for the single bias frames.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNote that both histograms are now narrower than the histograms for the single frames. This is a result of the noise being reduced in the combined frames because the random (Gaussian) noise tends to cancel out getting you closer to the \"true\" value of the underlying data. Also note however that the red histogram trails off to the right no longer resembling a parabola like the blue histogram from the QSI camera. This non-Gaussian noise typically has components of both pattern noise and stray pixels that fall outside the target Gaussian distribution. Pattern noise in particular \u003cem\u003ewill not be reduced\u003c\/em\u003e by combinging frames. Instead this type of noise combines just like signal reinforcing itself and reducing the signal to noise ratio in your final images.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBias frame histograms, however, can’t tell you the full story.  The width and shape of the histogram shows the magnitude and overall distribution of the noise, but it tells you little about the \u003cem\u003estructure\u003c\/em\u003e of that noise.  To do that requires another tool, the Fourier Transform\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA Fourier Transform is a mathematical function that converts a \u003cem\u003esignal\u003c\/em\u003e (any signal) into a collection of sine waves which together exactly represent the original signal.  For images, we’re interested in 2-dimensional Fourier Transforms which convert an image from the \u003cem\u003eSpatial Domain\u003c\/em\u003e, rows and columns in a digital picture, into an equivalent \u003cem\u003eFrequency Domain\u003c\/em\u003e image. A Fast Fourier Transform (FFT) is a special algorithm that runs much faster on computers when starting with square images where each side has a length equal to a power of 2 (e.g 256, 512, 1024).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"http:\/\/telescopes.net\/store\/media\/wysiwyg\/QSI\/qsi_read_noise.jpg\" alt=\"\"\u003eTo analyze the noise from a CCD camera, you create a Read Noise Frame as described above. By subtracting two bias frames, you end up with just the noise introduced by reading the image from the CCD. An FFT of that Read Noise Frame will reveal any pattern noise introduced by the camera. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAn FFT of random noise displaying a Gaussian distribution will have a smooth dark background with a single bright pixel in the center\u003c\/strong\u003e. To the left is an FFT of a Read Noise Frame from a QSI 500 Series camera. The FFT of the QSI Read noise frame reveals no pattern noise and is, in fact, virtually indistinguishable from an FFT of mathematically generated Gaussian noise.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTo the right is the FFT of a Read Noise Frame from a camera that introduces non-Gaussian, periodic noise into the image.  Note the series of vertical lines running through the FFT and the three bright dots near the center.  Those vertical lines in the FFT are the result of horizontal noise of various frequencies in the original image.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePeriodic noise will \u003cem\u003enot\u003c\/em\u003e be reduced when combining multiple images; instead it is reinforced, just like signal. \u003c\/strong\u003eThe net effect of such noise is to raise the noise floor, reducing the signal to noise ratio and hiding the faint details in your images.  When many such images are combined, periodic noise may show up as visible patterns, such as faint horizontal or vertical lines, running through your images.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003eRoll your mouse over the image to the right to see an example from a camera that displays even stronger pattern noise\u003c\/em\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe images below of a standard optical target demonstrate one of the benefits of low noise and a Gaussian distribution.  The images were captured with a QSI 516 camera in a very dark room.  A single image closely resembles a bias frame. The target is virtually indistinguishable from the background.  Its Signal to Noise Ratio is nearly zero.  With an average combine of 50 frames, light and dark areas are clearly visible.  With 200 frames, the target pattern is easily identifiable.  Note that even after combining 200 frames, the difference between the \u003cem\u003edark\u003c\/em\u003e and \u003cem\u003ebright\u003c\/em\u003e pixels is only 0.45 ADUs on average.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLower noise displaying a Gaussian distribution allows you to reveal\u003cbr\u003esubtle details in your targets that would otherwise be lost\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"QSI","offers":[{"title":"Default Title","offer_id":47979689574659,"sku":"U2604-SB-QSI583wsg","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/90bcbf19-7409-4d25-9f6a-60fe18368239.jpg?v=1776905196"},{"product_id":"used-atik-428ex-color-ccd-camera","title":"Used ATIK 428EX 2.8MP Color CCD Camera","description":"\u003cdiv id=\"shopify-section-static-product\" class=\"shopify-section product--section\"\u003e\n\u003csection class=\"product--container layout--two-col\" data-product-wrapper=\"\"\u003e\n\u003carticle class=\"prod-description\"\u003e\n\u003cdiv class=\"product-description rte\" data-product-description=\"\"\u003e\n\u003ch3\u003eHUGE PRICE DROP!  Was $600.  Now just $350!  \u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is an ATIK 428ex Color CCD camera in excellent condition, with clean optics and body.  It has 2.8MP of resolution, with 4.54 micron pixels, and up to 30 degrees C of active cooling.  \u003c\/p\u003e\n\u003cp\u003eThis sold for $1800 back in the day; obviously, that's less nowadays.  It comes in a nice Pelican case with all of the appropriate cords and cables.  \u003c\/p\u003e\n\u003cp\u003eThere are no returns on this item.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2.8 million 4.54µm square pixels for high-resolution imaging\u003c\/li\u003e\n\u003cli\u003eLow-noise electronics for the best sensitivity\u003c\/li\u003e\n\u003cli\u003eHigh Quantum Efficiency\u003c\/li\u003e\n\u003cli\u003eRegulated cooling to -30°C max below ambient\u003c\/li\u003e\n\u003cli\u003eExcellent software support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Atik 428EX is the first camera available to astronomers that uses Sony’s state of the art ICX674 2.8MP sensor. Featuring the latest generation EXview technology, this camera has an outstanding Quantum Efficiency, very low noise and excellent thermal management. This model is an ideal match to telescopes commonly used by amateurs. It’s excellent sensitivity makes it one of the best cameras for deep-sky astrophotography, surpassing its forerunner, the acclaimed ICX285.\u003c\/p\u003e\n\u003cp\u003eThe Atik-4 Series cameras are a development of the 3-Series cameras, featuring better cooling and narrower body. They benefit from setpoint cooling to make taking matching dark frames a snap, and simple 12V power requirement to facilitate field operation. The impressive sensitivity, great cooling and narrow profile, make the Atik Series 4 outstanding CCD cameras to use on modern telescopes, including\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/starizona.com\/products\/atik-428ex-color#\"\u003eHyperstar\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003esystems.\u003c\/p\u003e\n\u003cp\u003eThe Atik 428EX is a perfect match for narrowband imaging. Its excellent Quantum Efficiency in OIII, Ha and SII, make it one of the best cameras available for this demanding technique. Advanced color mapping compositions can be done with lower integration time, getting more out of your imaging session. More data, better data.\u003c\/p\u003e\n\u003cp\u003eFeaturing the narrowest body in its class, the Atik 428EX is one of the lightest cameras as well. But don’t think there was a compromise regarding cooling performance or stability. The cooler has been engineered for low power use, making your field sessions last longer. The desiccant port is now easily accessible from the exterior.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQuality Software\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Atik 428EX comes with Atik’s renowned\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eCapture\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eapplication which provides a simple and intuitive yet powerful way to acquire images. Tools include a focus assistance readout, image sequencer, guide camera control and integration with Atik filter wheels. Capture aims to take the stress out of imaging, making your time at the telescope more enjoyable. If you require compatibility with other software there are plugins for MaxIm DL, Astroart and CCDSoft, as well as a full ASCOM driver.\u003c\/p\u003e\n\u003cp\u003eAlso included is\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eDawn\u003c\/b\u003e, Atik’s new image-processing software. Like our cameras, it was designed from the ground up to be powerful yet easy to use. It allows a sequence of image-processing steps to be represented in the form of a pictorial workflow which can be created with a few mouse clicks and can then be executed very easily for repeatable and speedy results.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSensor Type:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eSony ICX674\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHorizontal Resolution:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e1932 pixels\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVertical Resolution:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e1452 pixels\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePixel Size:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e4.54x4.54 µm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eADC:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e16 bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReadout Noise:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eTypical 4e-\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInterface:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eMini-USB 2.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e12V DC, 1A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCooler:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eRegulated, Delta-T = -30°C max\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e400g\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e60x121mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"related_products_app_html\" data-currency=\"$\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-product-recommendations\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-static-product-recommendations\" class=\"shopify-section product-recommendations--section\"\u003e\n\u003csection class=\"product-section--container product-row--container product-recommendations--container\" data-html=\"\" data-product-recommendations=\"\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"ATIK","offers":[{"title":"Default Title","offer_id":47990678225155,"sku":"U2604-SB-ATIK428exC","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/0445d3cf-796b-4894-8cd2-154ca2d3bbbd.jpg?v=1776970292"},{"product_id":"used-sbig-st-8300c-color-camera","title":"Used SBIG ST-8300C 8.3MP Color Camera w\/cooling","description":"\u003ch3\u003eHUGE PRICE DROP!  Was $500.  Now just $300!  \u003c\/h3\u003e\n\u003cp\u003eThis is an SBIG-ST-8300C Color CCD camera in excellent condition, with a clean sensor and body.  It has an 8.3MP sensor with 5.4 micron pixels and up to 40 degrees C active cooling.  Back in the day, this sold for $2690; obviously, this is significantly less than that.  \u003c\/p\u003e\n\u003cp\u003eThis includes all the cords and cables, and the original manual.  It comes in a nice Pelican case.  \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe optical piece you see in the photos is called an eFinder. It screws into the camera if you remove the nosepiece. Outfitted this way, the camera can now be used as an autoguider that can sit on another OTA and guide it. So this camera can image without the eFinder like any other camera, or it can be converted into an autoguider.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThere are no returns on this item. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable width=\"650\" border=\"1\" cellpadding=\"3\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" align=\"center\"\u003eSBIG ST8300c CCD Camera\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eDetector:\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eKodak KAF-8300 single-shot color with microlens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003ePixel Array\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e3326 x 2504 pixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e5.4 x 5.4 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eTotal Pixels\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e8,328,304 active (8.3 megapixels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eFull Well Capacity\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e~25,500e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eDark Current\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e~0.002e-\/pixel\/second at -10° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eAnti-blooming\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e1000x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eShutter\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eeven illumination mechanical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eExposure\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e0.09 to 3600 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eA\/D conversion\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eA\/D gain\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e0.37e-\/ADU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eRead noise\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e~9.3e- RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eBinning modes\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e1x1, 2x2, 3x3 . . . 15x15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eCooling\u003c\/td\u003e\n\u003ctd align=\"center\"\u003esingle stage thermoelectric, active fan, -40° C from ambient maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eTemperature regulation\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e+\/-0.1° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eDimensions\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e2” x 4” x 5” (50mm x 100mm x 127mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003eWeight\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e1.8 pounds (0.8 Kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e","brand":"SBIG","offers":[{"title":"Default Title","offer_id":47990728130819,"sku":"U2604-SB-ST-8300C","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/136073ba-aff4-423d-ba48-d8bc641c9b38.jpg?v=1776971935"},{"product_id":"used-zwo-h-alpha-1-25-7nm-filter-2","title":"Used ZWO H-Alpha 1.25\" 7nm Filter","description":"\u003ch4\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eCondition:\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eThis is a used ZWO H-Alpha 1.25\" filter in excellent condition.  The optics and body are clean.  No box; comes in a ziploc bag.  \u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAny dust you see in the photos is easily removable - it seems that these filters develop an electrostatic charge such that the dust in the air is just attracted to the filter.  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e    \u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eDescription:\u003c\/span\u003e\u003c\/h4\u003e\n\u003ch2\u003eZWO 1.25\" H-Alpha, SII, OIII 7nm Filter Set\u003c\/h2\u003e\n\u003cp\u003eNarrowband filters are a fantastic astrophotography tool when it comes to imaging during times of high light pollution. When all three filters, the H-alpha, SII, OIII filters, are used in unison, it is perfect for tricolor CCD astrophotography!\u003c\/p\u003e\n\u003cp\u003eWhile narrowband filters do not eliminate the effects of light pollution, they do enhance the contrast between celestial objects and the night sky. It provides this contrast by reducing the transmission of certain wavelengths of light. These wavelengths come from artificial light, mercury vapor and both high and low pressure sodium vapor lights, and natural light, such as skyglow caused by neutral oxygen emission in the atmosphere. Additionally, each filter is fine-optically polished to ensure an accurate 1\/4 wavefront.\u003c\/p\u003e\n\u003ch3\u003eZWO Narrowband 1.25\" Filter Set Specifications\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilter Size: 1.25″\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMechanical Thickness: 7.5mm (5mm + 2.5mm thread)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFWHM: 7±0.5nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eH-Alpha Transmission Rate: About 90% transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eInfrared wavelength cut-off: 700-1100nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eTransmission of off-band: \u0026lt;0.1%, OD3(Optical Density)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eZWO H-alpha 7nm Filter\u003c\/h3\u003e\n\u003cp\u003eZWO H-alpha 7nm filter has a bandpass of 7nm, and it passes light at 656nm wavelength. If you want high contrast astroimaging, then this Hα filter will deliver an excellent performance. The light transmission rate for the filter comes up to 80% and the glass has been fine-optically polished to ensure accurate 1\/4 wavefront. So, even in areas of strong light pollution, you can still explore the night sky with your imaging equipment!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":47991242981635,"sku":"U2604-RH-ZWO-HA-125","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/8dfd9a9c-b11c-41c2-90e0-5487a59e105e.jpg?v=1776987127"},{"product_id":"used-wo-uniguide-32-slide-base-guide-scope-gold-1","title":"Used WO UniGuide 32 Slide-base Guide Scope (Gold)","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used William Optics 32mm Uniguide guide scope in gold. It is perfectly suited for a RedCat and other small refractors. This is in very good condition with clean optics and a mostly unmarked body, with the exception that there is some very slight dust on the objective that we cannot clean.  Otherwise it is clean and in perfect working order. This comes with both caps, but no box.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eSupport QHY, SBIG, ZWO and other 1.25\" cylinder type Guiding Cameras\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The UniGuide slide base has an integrated finder scope base - you \u003cspan style=\"text-decoration: underline;\"\u003edo not\u003c\/span\u003e need separate rings.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/products\/M-G32PB2.jpg?v=1595033209\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/M-G32PB_3-2.jpg?v=1603647096\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 style=\"text-align: start;\"\u003eSupport\u003c\/h5\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/products\/M-G32PB5.jpg?v=1595033209\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/products\/M-G32PB6.jpg?v=1595033209\"\u003e\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":48002421620995,"sku":"U2604-GM-M-G32PB-GD","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/169db13d-fcba-4ea1-8477-f740ea3565cb.jpg?v=1777072230"},{"product_id":"used-meade-acrobat-80-photo-tripod","title":"Used Meade Acrobat 80 Photo Tripod","description":"\u003cdiv class=\"grid__item medium-up--one-half section-header__item\"\u003e\n\u003cdiv class=\"section-header__subtext rte\"\u003e\n\u003cp\u003eThis is a Meade Acrobat in very good condition.  It is clean, and works perfectly.  However, the bottom leg lock on one of the legs does come loose.  It is easy enough to slide it back into place and have it hold the leg tightly; but we found this in our inspection and wanted to let you know.  We have taken this minor issue condition into consideration in the pricing.  \u003c\/p\u003e\n\u003cp\u003eIncludes bag and manual.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eAcrobat 80 - Advanced Photo Tripod #608051. This high quality photo tripod gives you the rock solid foundation needed for sports optics.\u003c\/p\u003e\n\u003cp\u003eTripod height is adjustable from 23.2\" - 65.7\", allowing for comfortable viewing from either standing or seated observing positions. Features a panhandle control, foam grips on upper leg sections, a build-in compass, and two bubble levels: one on the leg and one on the tripod head. Tripod weighs 4 lbs.\u003c\/p\u003e\n\u003cp\u003eCan be used with full-sized binoculars or spotting scopes. It is a standard 1\/4\"-20 attachment bolt. Comes with a nylon carry bag for safe storage.\u003c\/p\u003e\n\u003cp\u003eNote that the binocular tripod adapter is required to attach binoculars.\u003c\/p\u003e","brand":"Meade","offers":[{"title":"Default Title","offer_id":48028114125059,"sku":"U2604-JC-608051","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/618befd1-5982-4d96-88c2-72801cbc9214.jpg?v=1777418858"},{"product_id":"used-celestron-edgehd-800-ota","title":"Used Celestron EdgeHD 800 OTA","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e This is an 8\" EdgeHD OTA in excellent condition, with clean optics.  There are some minor dust specks on the corrector plate, but these will not affect your views\/data collection.  There is also a minor scratch on the tube, but of course, this won't affect your use of the scope.  It includes the visual back, diagonal, and 25mm eyepiece, but no finder. \u003c\/p\u003e\n\u003cp\u003eWe do not have the shipping boxes for this, so this available for in-store pickup only. There are no returns on this item.  \u003c\/p\u003e\n\u003chr\u003e\n\u003cul\u003e\n\u003cli\u003eExperience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces.\u003c\/li\u003e\n\u003cli\u003eAluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging.\u003c\/li\u003e\n\u003cli\u003eVersatile design accommodates 3 focal ratios: native f\/10, f\/7 with the addition of a focal reducer, or ultra-fast f\/2 imaging with a removable secondary mirror and third-party accessories.\u003c\/li\u003e\n\u003cli\u003eCelestron’s premium StarBright XLT coatings provide maximum light transmission.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSee the Universe in HD\u003c\/strong\u003e\u003cbr\u003eEdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrue Astrograph Quality\u003c\/strong\u003e\u003cbr\u003eMany optical designs that advertise themselves as \"astrographs\" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.\u003cspan\u003e \u003c\/span\u003eLearn more about EdgeHD technology.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImproved Performance\u003c\/strong\u003e\u003cbr\u003eSuperior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Features\u003cbr\u003e\u003c\/strong\u003eIn addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMirror clutches\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube vents\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastar versatility\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- EdgeHD is the most versatile imaging telescope available today. At its native f\/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f\/2 wide field imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually Tested\u003c\/strong\u003e\u003cbr\u003eEvery EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 100%;\" class=\"table-open\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eAperture (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e203.2 mm (8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eDovetail Compatibility\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eCGE Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFinderscope\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eN\/A; base only\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e2032 mm (80 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFocal Length of Eyepiece 1 ...\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eN\/A\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eHighest Useful Magnification\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e480 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eLight Gathering Power (Comp...\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e843 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eLimiting Stellar Magnitude\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eLowest Useful Magnification\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e29 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eMagnification of Eyepiece 1\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eStarBright XLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Design\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eEdgeHD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Tube\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Tube Length\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e17 in (432 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eOptical Tube Weight\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e14 lbs (6.35 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eResolution (Dawes)\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e0.57 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eResolution (Rayleigh)\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e0.69 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eSecondary Mirror Obstructio...\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e11%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eSecondary Mirror Obstruction\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e2.7 in (69 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 65.5563%;\"\u003eStar Diagonal\u003c\/td\u003e\n\u003ctd style=\"width: 34.0826%;\"\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":48046069317891,"sku":"U2604-PC-91030-XLT","price":1000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/5cef4b47-b5c1-4930-90e6-3f41baa821b5.jpg?v=1777661748"},{"product_id":"used-touptek-lrgb-sho-filters-1-25","title":"Used ToupTek LRGB\/SHO 6.5nm filters (1.25\")","description":"\u003ch4 class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003e\u003cspan\u003eCondition:\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003e\u003cspan\u003eThis is a complete set of 1.25\" Touptek LRGB\/SHO filter, \u003cem\u003eseven filters total\u003c\/em\u003e, in excellent condition with clean optics.  They come in their original jewel cases.\u003c\/span\u003e They do not include a box. \u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003e \u003c\/p\u003e\n\u003cp class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003e \u003c\/p\u003e\n\u003ch4 class=\"has-luminous-vivid-amber-color has-text-color wp-block-heading\"\u003e\n\u003cspan\u003e\u003c\/span\u003eDescription:\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cspan\u003eNarrowband filters\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eare essential accessories in astrophotography used to isolate specific wavelength emission lines and enhance the signal-to-noise ratio of your target—especially for capturing breathtaking emission nebulae.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eToupTek SHO narrowband filters\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eare precisely tuned to the three main ionized emission lines found in star-forming regions:\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHα (656.3nm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSII (671.6nm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOIII (500.7nm)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eBy using these filters, you can effectively block urban light pollution and background stray light, dramatically enhance signal contrast, and bring out incredible detail—empowering you to achieve\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHubble-like color mixing (SHO synthesis)\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ein your astrophotography.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"HSO filters for astrophotography\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/Filters-HSO-01.jpg?v=1751086834\" title=\"HSO filters for astrophotography\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eTechnical Parameters\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003eSize:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e36mm (unframed) \/ 1.25” \/ 2”\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eGlass Thickness:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e2mm\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eTransmission Range:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eH-alpha filter:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eCentral wavelength 656.3nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSII filter:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eCentral wavelength 671.6nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOIII filter:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eCentral wavelength 500.7nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eTransmittance:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u0026gt;90%\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFWHM:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e36mm:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eH-alpha (4nm) \/ SII (4nm) \/ OIII (4nm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e1.25” \u0026amp; 2”:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eH-alpha (6.5nm) \/ SII (6.5nm) \/ OIII (6.5nm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eGlass Material:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eQuartz glass\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFrame Material:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAluminum Alloy\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eSurface Treatment:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eDouble-sided high-precision optical polishing\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eCoating Technology:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIAD (Ion Assisted Deposition)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eCoating System Design:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAR anti-reflection coating + quartz glass + precision cutoff coating layer\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eOD:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e≥5.0\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"HSO filters for astrophotography\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/Filters-HSO-02.jpg?v=1751086834\" title=\"HSO filters for astrophotography\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion\"\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e▶️ Precise Band Control \u0026amp; Enhanced Detail Resolution\u003c\/summary\u003e\n\u003cdiv\u003eThe precise narrowband design effectively suppresses background noise while highlighting the emission structures of different elements, resulting in clearer celestial stratification and enhanced detail gradation.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e▲ Hα filter:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eCentral wavelength 656.3nm, FWHM 4nm.\u003cbr\u003eOptimized for hydrogen ionization regions, this filter serves as the primary channel for capturing nebular morphology.\u003cbr\u003e\u003cspan\u003e▲ OIII filter:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eCentral wavelength 500.7nm (OIII emission line), FWHM 4nm.\u003cbr\u003eDesigned to reveal high-energy excitation zones, particularly effective for visualizing blue-green nebular details.\u003cbr\u003e\u003cspan\u003e▲ SII filter:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eCentral wavelength 671.6nm, FWHM 4nm.\u003cbr\u003eEnhances detection of faint signals and reveals structural stratification through ionized sulfur distribution. When combined with Hα, significantly improves image contrast.\u003cbr\u003e\u003cspan\u003e*FWHM for 1.25-inch and 2-inch filters is 6.5nm.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e▶️ High-Quality Quartz Glass, High Transparency and Purity\u003c\/summary\u003e\n\u003cdiv\u003eThe entire series of ToupTek Astro filters utilize high-quality colorless transparent quartz glass, with \u0026gt;90% high transmittance, high purity, exceptional blue-violet band transmission, and outstanding thermal stability—ideal for various demanding astronomical imaging applications.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e▶️ IAD Dense Coating, Durable and Stable\u003c\/summary\u003e\n\u003cdiv\u003eUsing IAD (Ion Assisted Deposition) coating technology, which is more costly than conventional vacuum evaporation but produces denser and more uniform coatings that are durable, corrosion-resistant, and have superior environmental stability.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e▶️ Precision Coating, Significantly Suppresses Halos\u003c\/summary\u003e\n\u003cdiv\u003eToupTek Astro filters employ a proprietary multi-layer system: a single-sided cutoff coating, front surface AR anti-reflection coating, and edge blackening treatment. This combination effectively minimizes internal reflections and stray light while ensuring coating integrity and extended service life.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e▶️ High Optical Cutoff Depth, Restores Natural Colors\u003c\/summary\u003e\n\u003cdiv\u003eAll channel filters have a cutoff depth of OD≥5.0, effectively blocking non-target spectral regions, avoiding band crosstalk and color cast, resulting in accurate and natural color reproduction.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e▶️ Matte Black Edge Coating, Easy Installation\u003c\/summary\u003e\n\u003cdiv\u003eThe filter edge is coated with a black matte treatment to minimize stray light, which ensures transmittance, reduces glare, and enhances image contrast.\u003cbr\u003e\u003cspan\u003e▲ 36mm filters:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThe telescope-facing side has an inward-extending blackened border for quick orientation identification.\u003cbr\u003e\u003cspan\u003e▲ 1.25\" \u0026amp; 2\" filters:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eFeature threaded aluminum alloy frames for direct screw-in installation, ensuring fast and tool-free mounting.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e▶️ Highly Compatible\u003c\/summary\u003e\n\u003cdiv\u003eAll filters use a single-piece, glue-free structure.\u003cbr\u003e\u003cspan\u003e▲ 36mm:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eRecommended for APS-C and smaller cameras.\u003cbr\u003e\u003cspan\u003e▲ 1.25\":\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eRecommended for cameras with a 1-inch or smaller sensor.\u003cbr\u003e\u003cspan\u003e▲ 2\":\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eRecommended for full-frame and smaller cameras.\u003cbr\u003eCompatible with various brands on the market featuring 7-hole 36mm, 8-hole 1.25-inch, and 5-hole 2-inch electric filter wheels, offering a wider range of compatibility options.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"HSO filters for astrophotography\" title=\"HSO filters for astrophotography\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/Filters-HSO-03.jpg?v=1751086834\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eSpectrum\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HSO-Spectrogram-02.jpg?v=1751090460\" alt=\"6.5nm HSO filter spectrum\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eSpectral Chart Reading Tips:\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThe horizontal axis\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003erepresents the wavelength of light (in nm), and\u003cspan\u003e \u003c\/span\u003e\u003cb\u003ethe vertical axis\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003erepresents light transmittance (percentage %).\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRed line\u003c\/span\u003e: Hα (656nm);\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eGreen line\u003c\/span\u003e: OIII (500.7nm);\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eBlue line\u003c\/span\u003e: SII (672.4nm).\u003c\/li\u003e\n\u003cli\u003eEmission nebula signal bands are mainly at\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e656nm (Hα)\u003c\/b\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e500.7nm (OIII)\u003c\/b\u003e, and similar wavelengths.\u003c\/li\u003e\n\u003cli\u003eLight pollution peaks are often found near\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e540nm\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e590nm\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e(sodium\/mercury lamp bands).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eThe transmission regions of our astronomical filters are engineered to avoid these interference bands, ensuring maximum signal clarity, enhanced contrast, and high image purity for deep-sky imaging.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eWhy Choose LRGB Filters?\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eDesigned to overcome light pollution,\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003ethe ToupTek Astro LRGB filter set empowers astrophotographers to reveal the universe's authentic chromatic splendor.\u003cbr\u003e\u003cbr\u003eThe RGB three-channel filters are essential tools for monochrome astronomy cameras to capture professional-grade images.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eToupTek Astro LRGB filters\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eutilize advanced optical materials and precise coating technology to selectively transmit celestial emissions while blocking urban light pollution. This brings the true colors of the starry sky vividly to life and significantly enhances image contrast.\u003cbr\u003e\u003cbr\u003eEven faint celestial targets can reveal rich details. The extremely low halo effect ensures each image has excellent fidelity, elevating your astrophotography to the next level.\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"LRGB filters for astrophotography\" title=\"LRGB filters for astrophotography\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/Filters-LRGB-01.jpg?v=1751098204\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eTechnical Parameters\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003eSize:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e36mm (unframed) \/ 1.25” (31.77mm) \/ 2”\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eGlass Thickness:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e2mm\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eTransmission Range:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eL\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(420–690nm);\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eR\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(595–695nm);\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eG\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(495–580nm);\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eB\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(400–510nm)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eTransmittance:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u0026gt;95%\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eGlass Material:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eQuartz glass\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFrame Material:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAluminum Alloy\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eSurface Treatment:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eDouble-sided high-precision optical polishing\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eCoating Technology:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIAD (Ion Assisted Deposition) coating technology\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eCoating System Design:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAR anti-reflection coating + quartz glass + precision cutoff coating layer\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eOD:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e≥5.0\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"LRGB filters for astrophotography\" title=\"LRGB filters for astrophotography\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/Filters-LRGB-02.jpg?v=1751098204\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eSpectrum\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"LRGB filters for astrophotography\" title=\"LRGB filters for astrophotography\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/Filters-LRGB-03.jpg?v=1751098204\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eSpectral Chart Reading Tips:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eThe horizontal axis represents the wavelength of light (\u003cb\u003eunit: nm\u003c\/b\u003e), and the vertical axis represents light transmittance (\u003cb\u003eunit: %\u003c\/b\u003e).\u003cbr\u003e\u003cspan\u003eGray line: L channel; Red: R; Green: G; Blue: B\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe emission nebula signal bands are mainly concentrated around\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e656nm (Hα)\u003c\/b\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e500.7nm (OIII)\u003c\/b\u003e, and other bands.\u003c\/li\u003e\n\u003cli\u003eLight pollution peaks are commonly found near\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e540nm\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e590nm\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e(sodium\/mercury lamp bands).\u003c\/li\u003e\n\u003cli\u003eThe transmission regions of the astronomical filters are engineered to avoid these interference bands, ensuring effective signal passage, enhancing contrast, and image purity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003csection\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e▶️ Accurate Wavelength Bands, Restoring True Colors\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e▶️ High-Quality Quartz Glass, High Transparency and Purity\u003c\/summary\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e▶️ IAD Dense Coating, Durable and Stable\u003c\/summary\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e▶️ Precision Coating, Significantly Suppresses Halos\u003c\/summary\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e▶️ High Optical Cutoff Depth, Restores Natural Colors\u003c\/summary\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e▶️ Matte Black Edge Coating, Easy Installation\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e▶️ Highly Compatible\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003c\/div\u003e","brand":"Touptek","offers":[{"title":"Default Title","offer_id":48047904882947,"sku":"U2603-CB-TOUPTEK-LRGBSHO","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/87732121-f68d-48f1-a49b-2ee143125172.jpg?v=1779211412"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/collections\/UsedGear_546d674a-ce67-4d71-90f1-ef3e5e264ffb.jpg?v=1716488909","url":"https:\/\/milehighastro.com\/collections\/used\/william-optics.oembed","provider":"Mile High Astronomy","version":"1.0","type":"link"}