{"product_id":"askar-160apo-1x-full-frame-flattener-160apo-1flat","title":"Askar 160APO 1x Full-Frame Flattener (160APO-1FLAT)","description":"\u003ch1\u003eAskar 160APO 1x Full-Frame Flattener\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/image_2025-02-22_151624202.png?v=1740255387\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe 1.0x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 160APO, it still maintained a focal ratio of 7. The flattener corrects field curvature and coma, resulting in flatter field edges and finer star points.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe 1.0x flattener adopts a triplet 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\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\" style=\"width: 99.9582%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" style=\"width: 185.628%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e1x Flattener Parameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 43.0397%;\"\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\" style=\"width: 142.588%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e1120mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 43.0397%;\"\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\" style=\"width: 142.588%;\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/7\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 43.0397%;\"\u003e\n\u003cp\u003e\u003cstrong\u003eLens Number\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 142.588%;\"\u003e\n\u003cp\u003e\u003cstrong\u003eTriplet design\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 43.0397%;\"\u003e\n\u003cp\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 142.588%;\"\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 style=\"width: 43.0397%;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 142.588%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.56kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 43.0397%;\"\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 142.588%;\"\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\u003e1x Flattener Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/d9b2c108-4323-4eef-9ba7-2fd468ea243c.jpg?v=1740255467\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1x Flattener Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/6fac3c9d-95bd-414a-83dd-4ad887ac02bf.jpg?v=1740255486\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/850a58d0-a499-44f1-a227-16642dce87c5.jpg?v=1740255506\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIn the Box\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAskar 160APO 1x Full-frame Flattener\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/istronomyplus.com\/pages\/askar-sharpstar-warranty\" target=\"_blank\"\u003eAskar Warranty\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":46543422652645,"sku":"ASK-160APO-1FLAT","price":615.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_da290b92-e249-4114-8e6b-18f5710a210d.webp?v=1740255349","url":"https:\/\/istronomyplus.com\/products\/askar-160apo-1x-full-frame-flattener-160apo-1flat","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}