{"product_id":"used-zwo-oag-l-off-axis-guider-12mm-prism-1","title":"Used ZWO OAG-L Off-Axis Guider 12mm Prism","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used ZWO OAG-L in great condition. It includes the original M48 sensor tilt plate as well as its original box.  There is a tiny spot in the coatings of the prism which will not effect your use of this item; we have taken this tiny defect into account in the pricing.  See the photos.  \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003ePlease note that all used ASI equipment comes with only the attachments\/rings\/cables that you see in the photos.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eIf you don’t see it there, please know that it is NOT included.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eIf you have specific questions about a part in the photos that you’re unsure of, please feel free to give us a call to discuss. \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThere are no returns on this item. \u003cb\u003e \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003cp\u003eOAG-L has a large prism size of 12*12mm, far bigger than M68 OAG. The bigger clear aperture brings wider field of view in guiding. It is easy to use, and suitable for users who are interested in long focal length photography.\u003c\/p\u003e\n\u003cp\u003eTo take the most advantage of it, we recommend you to match it with large format guiding cameras.\u003c\/p\u003e\n\u003ch3 class=\"wp-block-heading\"\u003eFeatures\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eLightweight and exquisite, 17.5mm thickness.\u003c\/li\u003e\n\u003cli\u003ePrism size: 12*12mm.\u003c\/li\u003e\n\u003cli\u003eThe effective light-passing aperture is 11.7mm*8.3mm.\u003c\/li\u003e\n\u003cli\u003eCan be used to connect the main camera and guide camera simultaneously. No guide telescope required.\u003c\/li\u003e\n\u003cli\u003ePackaged with an M48 sensor tilt plate (5mm).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 class=\"wp-block-heading\"\u003eOperating Guide\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003eFor guiding, OAG-L can only work with ASI Mini cameras like ASI174MM Mini, ASI290MM Mini and ASI120MM Mini.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003eConsidering the large prism size, we don’t recommend you use OAG-L with telescopes whose clear aperture is smaller than M48.\u003c\/li\u003e\n\u003cli\u003eYet it is recommended to use with 2” EFW or 7x36mm EFW, and with APS-C cameras (ASI2600) or full-frame cameras (ASI6200\/2400). The large clear aperture supports full-frame cameras without vignetting.\u003c\/li\u003e\n\u003cli\u003eThe major differences between OAG-L and M68 OAG are about the prism size and the threads. OAG-L removed the inner threads so you can directly use the screws to connect it to other equipment.\u003c\/li\u003e\n\u003cli\u003eIf the thread of your telescope side is M48, then you don’t need to remove the M48 sensor tilt plate coming with OAG-L. On the contrary, you need to remove it and use some other sensor tilt plate at the corresponding thread of your telescope.\u003c\/li\u003e\n\u003cli\u003eWhile adding OAG-L into your optical train, please make sure the prism won’t block the camera sensor.\u003c\/li\u003e\n\u003cli\u003eYou can use the guiding screw to adjust the guiding camera’s focus length. Please make sure the distances from the prism to the main camera and to the guide camera are the same. To ensure the result, it is better to do this during the daytime for the adjustment will be very difficult at night.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4 class=\"wp-block-heading\"\u003ePlease Note\u003c\/h4\u003e\n\u003cp\u003eWhile adding OAG-L into your optical train, please make sure the prism won’t block the camera sensor.\u003c\/p\u003e\n\u003cp\u003eYou can use the guiding screw to adjust the guiding camera’s focus length. Please make sure the distance from the prism to the main camera and to the guide camera are the same. To ensure the result, it is better to do this at daytime for the adjustment will be very difficult at night.\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":50140722921731,"sku":"U2610-HS-ZWO-OAG-L","price":120.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/f8a697bdb570417a9af894798208ccd7.jpg?v=1773957882","url":"https:\/\/milehighastro.com\/products\/used-zwo-oag-l-off-axis-guider-12mm-prism-1","provider":"Mile High Astronomy","version":"1.0","type":"link"}