{"product_id":"askar-2-5-inch-f3-9-0-7x-full-frame-reducer-professional-astronomical-accessory-dedicated-for-fra400-astrograph","title":"Askar 2.5-inch F3.9 0.7x Full-frame Reducer Professional Astronomical Accessory Dedicated for FRA400 Astrograph","description":"\u003cp\u003e\u003cb\u003eAskar 2.5-inch F3.9 0.7x Full-frame Reducer Professional Astronomical Accessory Dedicated for FRA400 Astrograph\u003cbr\u003e\u003cbr\u003eDescription:\u003c\/b\u003e\u003cbr\u003e- 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 0.7x, 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 M48x0.75 thread, easy for the attachment of 2\" filters. \u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Reducer\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"width: 1024px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/99024\/99024-01.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products, Audio Amplifer and Decoders","offers":[{"title":"Default Title","offer_id":41028705321009,"sku":"99024","price":259.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/1758938886-1.jpg?v=1780321438","url":"https:\/\/www.thanksbuyer.com\/es\/products\/askar-2-5-inch-f3-9-0-7x-full-frame-reducer-professional-astronomical-accessory-dedicated-for-fra400-astrograph","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}