{"product_id":"starfield-0-8x-adjustable-2-reducer-sf-ffra-08-2","title":"StarField 0.8X Adjustable Reducer for 70 mm - 102 mm Refractors - SF-FFRA-08-S","description":"\u003cul\u003e\n\u003cli\u003e2.0\" Adjustable 0.8x Reducer\u003c\/li\u003e\n\u003cli\u003eAdjustable to reach 55mm with no adapters\u003c\/li\u003e\n\u003cli\u003eDesigned for 70mm - 102mm Telescopes\u003c\/li\u003e\n\u003cli\u003eTelescope Connection:  M63\u003c\/li\u003e\n\u003cli\u003eCamera Connection:  M48\u003c\/li\u003e\n\u003c\/ul\u003e\n \n \u003cp\u003eThe Starfield 0.8x adjustable reducer and flattener makes finding the correct back focus easy! \u003c\/p\u003e\u003cp\u003eFighting with adapters is a thing of the past! Adjusting the reducer to achieve 55mm of back focus is simple, and if more adjustment is needed for fine tuning all that is needed is a small twist. If you are using accessories such as filter wheels and rotators you can not still get the required back focus.  Just add up the thickness of all the accessories, plus the distance to your sensor, and adjust based on the table below and then set the reducer to the number that is calculated.\u003c\/p\u003e\n\n\u003cp\u003eThe StarField 2\" Adjustable 0.8X Reducer attaches directly to the StarField Géar 80 \/ 90 mm telescope focuser by removing the Axil lock. Using the supplied 1.5mm Allen key, loosen the three screws a half turn and then unscrew the lock. Thread the reducer onto the focuser.\u003c\/p\u003e \n\n\u003cp\u003eThis Reducer can also be used for other 70 mm to 102 mm telescopes than from 70mm to 102mm.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e102 mm \/ focal ratio f\/7 - 55 mm\u003c\/li\u003e\n\u003cli\u003e\n90 mm \/ focal ration f\/6 - 56 mm\u003c\/li\u003e\n\u003cli\u003e \n80 mm \/ focal ratio f\/7 - 57.6 mm\u003c\/li\u003e\n\u003cli\u003e \n80 mm \/ focal ratio f\/6 - 59.6 mm\u003c\/li\u003e\n\u003cli\u003e \n70 mm \/ focal ratio f\/6 - 61.6 mm\u003c\/li\u003e\n\u003c\/ul\u003e \n\n  \u003cstrong\u003eSpecifications\u003c\/strong\u003e\n\n\u003cul\u003e\n\u003cli\u003eDesign: Corrector and reducer for refractor telescopes\u003c\/li\u003e\n\u003cli\u003e\nTelescopic connection: M63x1 external thread\/li\u0026gt;\u003c\/li\u003e\n\u003cli\u003e\nCamera connection: M48x0.75 external thread\u003c\/li\u003e\n\u003cli\u003e\nReduction factor: 0.8 x\u003c\/li\u003e\n\u003cli\u003e\nLenses:3 lenses with ED element\u003c\/li\u003e\n\u003cli\u003e\nCoating: multi-coating and internal blackening\u003c\/li\u003e\n\u003cli\u003e\nWorking distance: variable (adjustable)\u003c\/li\u003e\n\u003cli\u003e\nAdjustment range of the distance: 0-17 mm stepless\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"StarField Optics","offers":[{"title":"Default Title","offer_id":39768814059633,"sku":"SFO-SF-FFRA-08-S","price":205.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/sf-ffra-08-s.jpg?v=1776459230","url":"https:\/\/khanscope.com\/en-fr\/products\/starfield-0-8x-adjustable-2-reducer-sf-ffra-08-2","provider":"Khan Scope Centre","version":"1.0","type":"link"}