{"product_id":"askar-f39-full-frame-reducer-for-fra40056","title":"Askar F3.9 Full Frame Reducer for FRA400\/5.6","description":"\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/huGAvxVMZB8\" height=\"315\" width=\"560\" frameborder=\"0\"\u003e\u003c\/iframe\u003e \u003cbr\u003e\n\u003cp\u003eAskar provides a brand-new F3.9 full frame reducer for FRA400 astrograph, further reducing the focal length and thus shortening the exposure time on its original 400 focal length and f\/5.6 focal ratio design basis. The reduction factor is 0.7×, and the reduced focal length is 280mm, which can satisfy most deep-sky astrophotography. The back focus is standard 55mm. The reducer has built-in M48×0.75 thread, easy for the attachment of 2\" filters.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158875708778.jpg?v=1663708897\u0026amp;width=700\"\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cimg data-mce-fragment=\"1\" style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/160992005934_1024x1024.jpg?v=1663708938\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/160992005934.jpg?v=1663708938\u0026amp;width=700\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158875713634_1024x1024.jpg?v=1663708996\" alt=\"\" style=\"float: none;\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158875713634.jpg?v=1663708996\u0026amp;width=700\"\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cimg data-mce-fragment=\"1\" style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158875715990_1024x1024.jpg?v=1663709030\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158875715990.jpg?v=1663709030\u0026amp;width=700\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cbr\u003e \u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eShortening the exposure time on its original 400 focal length and f\/5.6 focal ratio design basis\u003c\/li\u003e\n\u003cli\u003eSatisfies most deep-sky astrophotography\u003c\/li\u003e\n\u003cli\u003ePictured telescope not included. Buy the telescope here!\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAskar F3.9 Full Frame Reducer for FRA400\/5.6\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sharpstar \/ Askar","offers":[{"title":"Default Title","offer_id":46211978887237,"sku":"jac1793410492904","price":161.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/4703\/0341\/files\/askar-f39-full-frame-reducer-for-fra40056_1.jpg?v=1793410511","url":"https:\/\/wheelrimcap.shop\/products\/askar-f39-full-frame-reducer-for-fra40056","provider":"My Store","version":"1.0","type":"link"}