{"product_id":"askar-f-3-9-full-frame-reducer-for-fra400-5-6-fra400fr","title":"Askar 0.7x F\/3.9 Full Frame Reducer for FRA400\/FRA500 (FRA400FR)","description":"\u003ch1 class=\"LC20lb DKV0Md\"\u003eAskar 0.7x Full Frame Reducer for FRA400\/FRA500 5.6\u003c\/h1\u003e\n\u003cp\u003eThe Askar new FRA400\/FRA500 F3.9 full-frame reducer reduces the telescope’s effective focal ratio by a factor of 0.7x, thus an original f\/5.6 becomes an f\/3.9 system, your exposure time will significantly shorten, providing a shorter, more optically “fast” focal ratio to make astrophotography more efficient. It designed for use with FRA400 refractor, providing a 280MM focal length for a wider imaging field of view. It achieves the 55MM back focus, and conveniently threaded for use with M48X0.75 (2\") filters.  \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAskar 0.7x Full Frame Reducer for FRA400\/5.6 and FRA500\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"value\" data-mce-fragment=\"1\"\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\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":43125830451429,"sku":"ASK-FRA400\/FRA500FR","price":383.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/askar-0-7x-full-frame-reducer-for-fra4005-6-fra400fr-astronomy-plus_8e3734c3-de40-48ba-9746-f72ef26d5bbb.jpg?v=1690487068","url":"https:\/\/istronomyplus.com\/products\/askar-f-3-9-full-frame-reducer-for-fra400-5-6-fra400fr","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}