{"product_id":"askar-1x-full-frame-flattener-for-185apo-185apo-1flat","title":"Askar 1x Full-frame Flattener for 185APO (185APO-1FLAT)","description":"\u003ch2\u003eAskar 1x Full-frame Flattener for 185APO\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp class=\"e_text-8 s_title response-transition\"\u003eThe Askar 185 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener， which is optimized for the Askar 185APO， and can provide more possibilities for telescope use.\u003c\/p\u003e\n\u003cp\u003eThe 1.0x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 185APO, 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\u003eThe 1.0x flattener adopts a triplet design and supports a 44mm full-frame image circle. The overall weight is 0.79kg. 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\u003ch3\u003eTechnical Specifications \u003c\/h3\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" style=\"margin-top: 20px;\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e （After attaching）140APO Focal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e1295mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e （After attaching）140APO Focal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003ef\/7\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cb\u003eLens Number\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTriplet design\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp style=\"text-align: center;\"\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 style=\"text-align: center;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e0.74kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eM68×1\u003cbr\u003eM54×0.75 \u003cbr\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\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cdiv role=\"tabpanel\" aria-hidden=\"false\" aria-labelledby=\"tab-title-3\" data-content=\"tab-3\" class=\"tab__content tab.box tab__content--active\" id=\"tab-3\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eAskar 1x Flattener for 185APO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDust Caps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAskar Warranty\u003c\/p\u003e\n\u003cdiv class=\"cbox-53-0 p_item\"\u003e\n\u003cdiv class=\"e_loop_sub-64 s_list response-transition\"\u003e\n\u003cdiv class=\"cbox-64 p_loopItem\"\u003e\n\u003ca href=\"https:\/\/omo-oss-file.thefastfile.com\/portal-saas\/new2022072923460240318\/cms\/file\/9e85565e-e866-4835-b025-68d48208b1ae.pdf\" class=\"e_text-65 s_title response-transition\" target=\"_self\"\u003e \u003c\/a\u003e\n\u003cdiv class=\"cbox-53-0 p_item\"\u003e\n\u003cdiv class=\"e_loop_sub-64 s_list response-transition\"\u003e\n\u003cdiv class=\"cbox-64 p_loopItem\"\u003e\u003ca href=\"https:\/\/omo-oss-file.thefastfile.com\/portal-saas\/new2022072923460240318\/cms\/file\/9e85565e-e866-4835-b025-68d48208b1ae.pdf\" class=\"e_text-65 s_title response-transition\" target=\"_self\"\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-53-1 p_item\"\u003e\n\u003cdiv class=\"e_loop_sub-67 s_list response-transition\"\u003e\n\u003cdiv class=\"cbox-67 p_loopItem\"\u003e\n\u003cp class=\"e_text-68 s_title response-transition\"\u003e\u003ca href=\"https:\/\/www.sharpstar-optics.com\/npublic\/opdfjs\/web\/viewer.html?file=https%3A%2F%2Fomo-oss-file.thefastfile.com%2Fportal-saas%2Fnew2022072923460240318%2Fcms%2Ffile%2F9e85565e-e866-4835-b025-68d48208b1ae.pdf\" target=\"\"\u003e 185APO 1x Flattener User's Manual \u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-53-1 p_item\"\u003e\n\u003cdiv class=\"e_loop_sub-67 s_list response-transition\"\u003e\n\u003cdiv class=\"cbox-67 p_loopItem\"\u003e\n\u003cp class=\"e_text-68 s_title response-transition\"\u003e\u003ca target=\"\"\u003e 185APO 1x Flattener User's Manual \u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":45694815535333,"sku":"ASK-185APO-1FLAT","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_a6b1071d-4a9f-49e0-b7cc-db0b34952c60.png?v=1777044880","url":"https:\/\/istronomyplus.com\/products\/askar-1x-full-frame-flattener-for-185apo-185apo-1flat","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}