{"product_id":"askar-0-85-focal-reducer-for-80ed-refractor-80ed-085red","title":"Askar 0.85 Focal Reducer for 80ED Refractor - 80ED-085RED","description":"\u003cp\u003eThe Askar 0.85X Focal Reducer is designed specifically for the 80ED refractor.  By adding this reducer to the optical chain of your telescope, the focal length will f\/5.9 for a wider field of view and faster imaging times.  \u003c\/p\u003e\n\u003cp\u003eThe reducer features a triplet optical design that includes one ED element.  It is designed as a focal reducer but also provides some field flattening correction.  This Askar 80ED .85X Reducer is optimized for the APS-C frame.\u003c\/p\u003e\n\u003cp\u003eThe body is CNC machined for a long life and has metal caps on both ends to protect your optics when not in use.  The rear adapter has built-in M48x0.75 threads that accept 2\" filters.  No need for a filter drawer!  Finally, a 360º camera rotator is integrated into the design for easy image framing.\u003cspan style=\"color: #000000; font-family: Helvetica; font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: #000000; font-family: Helvetica; font-size: medium;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476mm, once attached to the 80ED\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ef\/5.9, once attached to the 80ED\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTriplet with one ED element\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAPS-C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e55mm from the base of M48 male thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e0.44kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eM54×0.75\u003c\/strong\u003e              \u003cbr\u003e\u003cstrong\u003eM48×0.75 (M48×0.75 filter thread inside)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42105744654449,"sku":"ASK-80ED-085RED","price":170.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/80ED_85_Reducer_on_Side.webp?v=1776459245","url":"https:\/\/khanscope.com\/fr-fr\/products\/askar-0-85-focal-reducer-for-80ed-refractor-80ed-085red","provider":"Khan Scope Centre","version":"1.0","type":"link"}