{"product_id":"askar-160apo-0-8x-full-frame-reducer-160apo-08xr","title":"Askar 160APO 0.8x Full-frame Reducer (160APO-08XR)","description":"\u003ch1\u003eAskar 160APO 0.8x Full-frame Reducer\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"ie_fimg-1736818366331\" class=\"ie_fimg\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/c143bdb5-29f0-4174-ba8f-6b526dcf3732.jpg?v=1740239158\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"ie_line-1736818366581\" class=\"ie_line\"\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1736818366586\" class=\"reset_style\"\u003e\n\u003cp\u003eThe 0.8x reducer can bring Askar 160APO's focal ratio down to F5.6. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.\u003c\/p\u003e\n\u003cp\u003eThe 0.8x reducer adopts a quadruplet design and supports a 44mm full-frame image circle. The back focus from the M48 thread is a standard 55mm. The front thread is M92*1. At the camera end, it is equipped with M68*1, M54*0.75, and M48*0.75 three sizes of adapters, which are convenient for connection. At the same time, it has a built-in M48*0.75 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e0.8x Reducer Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/24d58b5c-6e62-4a3d-986a-861875d627e5.webp?v=1740250349\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eSpot Diagram\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/b288cb06-5853-4709-9b0a-e7de4729884c.jpg?v=1740239272\" alt=\"\" width=\"698\" height=\"289\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.8x Reducer Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003e（After attaching）160APO Focal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e896mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003e（After attaching）160APO Focal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/5.6\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eLens Number\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuadruplet design\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e55mm（from the base of M48 male thread）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e1.1kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM68×1\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eM54×0.75\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eM54×0.75-M48×0.75 (M48×0.75 filter thread inside)\u003c\/strong\u003e\u003c\/p\u003e\n\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\u003e0.8x Reducer Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/95ffac13-afa4-40d1-abfb-0be35dfbf66a_e8baf677-2393-4a98-8da3-0eaf56c535e2.jpg?v=1740250187\" alt=\"\" width=\"693\" height=\"307\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003eAskar 160APO 0.8x Full-frame Reducer\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/askar-sharpstar-warranty\" target=\"_blank\" rel=\"noopener\"\u003eAskar Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":46543171158245,"sku":"ASK-160APO-08XR","price":558.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_45b7ce74-9b1e-4b7a-b8a2-483645283ea1.webp?v=1740239453","url":"https:\/\/istronomyplus.com\/products\/askar-160apo-0-8x-full-frame-reducer-160apo-08xr","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}