{"product_id":"zwo-0-76x-full-frame-reducer-for-ff80-apo-refractor-f80re","title":"ZWO 0.76X Full Frame Reducer for FF80 APO Refractor - F80RE - On Sale!","description":"\u003cp\u003eThe ZWO 3\" 0.76× Full Frame Reducer is designed specifically for the FF80 APO refractor.  It has a reduction factor of 0.76X, which shortens the effective focal ratio to f\/5.7 for a wider field of view and shorter image acquisition times.  The reducer has a three-element optical design with one extra-low dispersion (ED) element and will work with full frame cameras.\u003c\/p\u003e\n\u003cp\u003eThe back focus distance is the standard 55mm. The reducer connects to the refractor by taking the place of the four-segment camera extension tube that comes with the FF80.  It comes with a built-in M48x0.75 2” filter thread.\u003c\/p\u003e\n\u003ch3 class=\"wp-block-heading\"\u003eConnection steps\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePrepare the FF80 APO telescope tube and the focal reducer.\u003c\/li\u003e\n\u003cli\u003eUnscrew the four-segment extension tube at the end of the FF80 APO telescope tube.  Place somewhere safe.\u003c\/li\u003e\n\u003cli\u003eUnscrew the end cap of the 0.76X reducer.\u003c\/li\u003e\n\u003cli\u003eInsert the reducer into the focuser and tighten.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c!----\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":41078010970225,"sku":"ZWO-F80RE","price":223.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Reducer_for_FF80.jpg?v=1776458922","url":"https:\/\/khanscope.com\/fr-fr\/products\/zwo-0-76x-full-frame-reducer-for-ff80-apo-refractor-f80re","provider":"Khan Scope Centre","version":"1.0","type":"link"}