{"product_id":"askar-60f-quadruplet-flat-field-apo-refractor-60f","title":"Askar 60F Quadruplet Flat-Field APO Refractor - 60F","description":"\u003cdiv class=\"card__header\"\u003e\n\u003cdiv style=\"text-align: center;\" class=\"card__title heading h3\"\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAskar 60F Flat Field Quad Refractor\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"card__title heading h3\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Askar_60F_Top_Banner.jpg?v=1753989752\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card__section\"\u003e\n\u003cdiv class=\"rte text--pull\"\u003e\n\u003cdiv class=\"cbox-15 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix\"\u003e\n\u003cdiv class=\"ce_detail\" data-layout=\"flow\" id=\"ce_detail-289423\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1707113026075\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1707113026075-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1707113026080\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1707113026080-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1707113026090\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1707113026090-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1707113026095\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1707113026095-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1707113026100\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1707113026100-0\"\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1707113026110\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e60mm aperture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e408mm focal length\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ef\/6.8 focal ratio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eQuadruplet APO design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e1 ED glass element\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSupporting full frame (44 mm image circle)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eNo need to calculate the back focus\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eBuilt-in Flattener\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eRetractable lens hood\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e360° rotator\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e2 Finder bases\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e2.4 inch R\u0026amp;P focuser\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e1:10 fine adjustment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e1.25\/2'' visual adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e230mm Vixen dovetail plate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e4-piece photographic adapter set\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_line\" id=\"ie_line-1707113026330\"\u003e\u003cspan\u003eThe Askar 60F adopts a quadruplet air-spaced APO lens design, including one piece of ED glass, which can effectively reduce chromatic aberration. The Askar 60F supports 44mm full-frame imaging with great performance of the surrounding star points.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1707113026335\"\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F is a self-flattened design that allows users to avoid calculating the back focus and buying additional flattener, after attaching the imaging accessories, users can use it for imaging after the OTA is in focus. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1707197718594\"\u003e\n\u003cp\u003e\u003cspan\u003eWith practicality and versatility in mind, the Askar 60F's weight and size are effectively controlled, making it easy to carry and use. The Askar 60F OTA weighs only 2.5kg and the gross weight is 3kg (including the tube rings and dovetail plate).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F is versatile in its use, allowing for both visual observation and astrophotography.  Just add a diagonal \u0026amp; eyepiece for visual use or your favorite DSLR or astro imaging camera \u0026amp; adapter for terrestrial imaging or astrophotography.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1707113026345\"\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Askar 60F comes standard with a photographic extension tube, which includes M48*0.75 \u0026amp; M54*0.75 adapters.  The extension tube contains a built-in 2-inch filter thread for easy shooting connections. No matter whether connecting a traditional DSLR camera or a professional astronomical camera, it is very convenient to use. When users go out, they can directly connect the imaging accessories to record the beautiful view at any time.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1707113026355\"\u003e\n\u003cp\u003e\u003cspan\u003eThe mechanical design of the Askar 60F itself adheres to Askar's consistent philosophy of taking into account the user's habits and minimizing the user's invisible costs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe dew shield of the Askar 60F is a retractable design, further shortening the overall length and increasing portability. The entire lens tube of Askar 60F is crafted using high-quality CNC machining. The dew shield' interior is covered with matte paint to effectively reduce stray light reflections.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA finder base is included on the handle at the top of the tube rings, and there are two additional finder bases on both sides of the focuser, which not only eliminates the need for disassembling when changing the position of the finder scope but also provides additional mounting positions for other astronomical accessories.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn terms of the focuser, the Askar 60F is equipped with a dual-speed R\u0026amp;P 2.4-inch rigid focuser with 1:10 fine adjustment and a 360° scale field rotator at the rear end for precise angle adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F's dovetail plate is a 230mm standard Vixen dovetail plate, which slotted 1\/4 screw holes as well as 3\/8 screw holes for direct tripod attachment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1707113026365\"\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-15 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix response-transition\"\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable class=\"ck-table-resized\"\u003e\n\u003ccolgroup\u003e \u003ccol\u003e \u003ccol\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eParameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture size\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e408mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003ef\/6.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective lens\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eQuadruplet air-spaced APO(including one ED glass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e44mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum accessory connection (with the focuser fully retreated)\u003c\/td\u003e\n\u003ctd\u003eImaging mode:  \u003cbr\u003e81mm (from the base of M48×0.75 male thread）  \u003cbr\u003e99mm（from the base of M54×0.75 male thread)\u003c\/td\u003e\n\u003ctd\u003eObserving mode:  \u003cbr\u003e120mm（from the end of 1.25\" eyepiece holder）  \u003cbr\u003e130mm（from the end of 2\" eyepiece holder）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal length\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e289mm(including 1.25\" adapter as dew shield contracted）  \u003cbr\u003e323mm(including 1.25\" adapter as dew shield fully stretched）  \u003cbr\u003e336mm(including the photographic adapter as dew shield contracted）  \u003cbr\u003e369mm(including the photographic adapter as dew shield fully stretched）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e2.36kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross weight (Including tube ring\u0026amp;dovetail plate)\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e2.86kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear-end thread type\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eM64×0.75-M54×0.75   \u003cbr\u003eM54×0.75-M54×0.75   \u003cbr\u003eM54×0.75-M48×0.75  (with M48×0.75 filter thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard package items\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e A 60F OTA，a pair of tube rings, a handle, a mm Vixen dovetail plate,a set of photographic adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42229200814193,"sku":"ASK-60F","price":448.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Askar_60F_Facing_Right.png?v=1776459285","url":"https:\/\/khanscope.com\/en-fr\/products\/askar-60f-quadruplet-flat-field-apo-refractor-60f","provider":"Khan Scope Centre","version":"1.0","type":"link"}