{"product_id":"starfield-adjustable-flattener-for-80-155mm-telescopes-sf-ffa-10","title":"Starfield Adjustable Flattener for 80 - 155mm Telescopes (SF-FFA-10)","description":"\u003ch1\u003eStarfield Adjustable Flattener for 80 - 155mm Telescopes\u003c\/h1\u003e\n\u003cdiv class=\"ui-accordion-content ui-corner-bottom ui-helper-reset ui-widget-content ui-accordion-content-active\" id=\"ui-id-2\" aria-labelledby=\"ui-id-1\" role=\"tabpanel\" aria-hidden=\"false\" style=\"text-align: start;\"\u003e\n\u003cp\u003e\u003cspan\u003eThe Starfield 1.0x adjustable flattener makes finding the correct back focus easy! Fighting with adapters is a thing of the past!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBy setting the adjustment required for your telescope, achieving the correct amount of back focus is simple. 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 subtract from 69.87 and then set the reducer to the number that is calculated.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe reducer attaches directly to the Starfield telescope focusers. Using the supplied 1.5mm Allen key, loosen off the three screws a half turn and then unscrew the lock.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThread the reducer onto the focuser.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Flattener is designed for telescopes ranging from 80mm to 155mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e80 mm \/ focal ratio f\/6 - 81.2 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e90mm \/ focal ratio f\/6 - 82.5mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e102 mm \/ focal ratio f\/7 - 75.3 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e115 mm \/ focal ratio f\/7 - 73.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e130 mm \/ focal ratio f\/7 - 69.7 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e140 mm \/ focal ratio f\/6.5 - 68.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e155 mm \/ focal ratio f\/8 - 57.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFilters can be added inside the reducer.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/SF-FFA1__07764__99725.jpg?v=1741629835\u0026amp;width=700\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis Flattener is designed for telescopes ranging from 80mm to 155mm:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e80 mm \/ focal ratio f\/6 - 81.2 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e90mm \/ focal ratio f\/6 - 82.5mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e102 mm \/ focal ratio f\/7 - 75.3 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e115 mm \/ focal ratio f\/7 - 73.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e130 mm \/ focal ratio f\/7 - 69.7 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e140 mm \/ focal ratio f\/6.5 - 68.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e155 mm \/ focal ratio f\/8 - 57.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFilters can be added inside the reducer.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eAdjustable Flattener Only\u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eStarfield 3-Year Optic Warranty \/ Starfield 1-Year Accessories Warranty\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":52326131630381,"sku":"bcq1787938061486","price":139.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0924\/0743\/1469\/files\/starfield-adjustable-flattener-for-80---155mm-telescopes-sf-ffa-10_1.jpg?v=1787938068","url":"https:\/\/www.northandmuse.shop\/products\/starfield-adjustable-flattener-for-80-155mm-telescopes-sf-ffa-10","provider":"My Store","version":"1.0","type":"link"}