{"product_id":"askar-0-74x-reducer-for-the-111f-111f-red","title":"Askar 0.74x Reducer for the 111F - 111F-RED","description":"\u003cdiv class=\"card__header\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePre-Order Now for Arrival at Khan on May 22!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/111F_Reducer_Hero.jpg?v=1778790885\"\u003e\u003c\/span\u003e\u003cspan\u003eThe 0.74× reducer brings the Askar 111F's focal ratio down to F5.1, delivering a faster optical system while incorporating built-in field-flattening correction to effectively eliminate field curvature - ensuring sharp and clear stars from the center to the very edges of the frame. The shorter focal ratio provides a wider field of view and shorter exposure times, making it particularly well-suited for capturing expansive nebulae, star clusters, and faint or fast-moving celestial objects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 111F 0.74× Reducer features a triplet optical design and supports a 44mm full-frame image circle. Its back focus is 55mm (measured from the M48 thread), and both ends feature M68×1 threads for optimal adaptability and stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 111F photographic extension tube includes M54×0.75 and M48×0.75 adapters, allowing for direct and convenient connection to the 111F 0.74× reducer. The reducer’s rear adapter ring features a built-in M48×0.75 standard 2-inch filter thread, enabling direct installation of various astronomical filters to accommodate different imaging needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe entire reducer is precision CNC-machined and comes with front and rear metal threaded caps to protect the optics from dust when not in use.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card__section\"\u003e\n\u003cdiv class=\"rte text--pull\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e （After attaching）111F Focal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e566mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e （After attaching）111F Focal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ef\/5.1\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLens Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTriplet design\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e55mm（from the base of M48 male thread）\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e0.5kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eM68*1\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":43243657724017,"sku":"ASK-111F-RED","price":419.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/131F_Reducer_Main.webp?v=1778790264","url":"https:\/\/khanscope.com\/fr\/products\/askar-0-74x-reducer-for-the-111f-111f-red","provider":"Khan Scope Centre","version":"1.0","type":"link"}