{"product_id":"used-stellarvue-optimus-100-20mm-eyepiece","title":"Used Stellarvue Optimus 100° 20mm Eyepiece","description":"\u003cp\u003eThis is a Stellarvue Optimus 20mm eyepiece with a ONE HUNDRED DEGREE apparent field of view.  It is in excellent condition, with completely clean optics and unmarked barrel.  \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eThis came in (with a bunch of ES 100-degree eyepieces) from one of our trusted long-time customers, who keeps his gear in perfect, clean condition.  This one is no exception.  It is in its original box with both dust caps, and velvet bag.       \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003e \u003c\/h5\u003e\n\u003ch5\u003eFeatures\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/h5\u003e\n\u003cp\u003eIntroducing the Stellarvue Optimus eyepiece series. This 20 mm eyepiece is ideal for viewing of extended objects, scanning the Milky Way and locating objects using the widest possible field of view.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.astronomy.com\/observing\/stellarvues-optimus-eyepieces-tested\/\"\u003eRead the review of the Stellarvue Optimus eyepieces by Tony Hallas in the May 2017 issue of Astronomy.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eA 100-degree field of view provides the user with almost 1.5 times the area of an 82-degree eyepiece. When using hand driven alt-azimuth mounts this generous field will be appreciated. The eyepiece offers a generous 15 mm of eye relief and has a standard foldable rubber eye cup. Each of the nine elements are fully multi-coated, edge blackened and the lens barrel and baffles are similarly dark black. All of these factors add up to create an extremely contrasty eyepiece that is free of unwanted reflections, flaring or ghosting.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur EOP eyepieces are now loaded into AstronomyTools database and application. Click here to simulate the field of view \u003ca href=\"https:\/\/astronomy.tools\/\"\u003ehttps:\/\/astronomy.tools\/\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" class=\"bzero\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"bzero\"\u003e\u003cstrong\u003e20 mm Stellarvue Optimus Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bzero\"\u003eFocal Length: 20 mm\u003cbr\u003eWeight: 29 oz\u003cbr\u003eLength: 6\"\u003cbr\u003eMax Dia: 2-5\/8\"\u003cbr\u003eLenses: 9\/6\"\u003cbr\u003eFOV: 100 degree\u003cbr\u003eEye Relief: 15 mm\u003cbr\u003eBarrel(s): 2\"\u003cbr\u003eField Stop Dia: 34.9 mm\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003ctd class=\"bzero\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eMeasured with eye cup rolled down. Add 1\/8\" if rolled up.\u003c\/li\u003e\n\u003cli\u003eNumber of elements\/number of groups\u003c\/li\u003e\n\u003cli\u003eApparent Field of View measured in degrees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Stellarvue","offers":[{"title":"Default Title","offer_id":49678755102979,"sku":"U2609-DP-OPTIMUS20","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/BFF756D5-E24A-417D-A231-FD56946AB1C6.jpg?v=1790106211","url":"https:\/\/milehighastro.com\/products\/used-stellarvue-optimus-100-20mm-eyepiece","provider":"Mile High Astronomy","version":"1.0","type":"link"}