{"product_id":"zwo-ff70-apo-flat-field-apochromatic-refractor","title":"ZWO FF70 APO - Flat-Field Apochromatic Refractor","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Principal_KV.jpg?v=1781816971\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eLightweight \u0026amp; Compact - Designed for Both Visual Observation and Astrophotography\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/70icon.jpg?v=1781817000\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e*Focus can be achieved within a back focus range of 32.5-82.5 mm, measured from the M54-M48 interface shoulder.\u003c\/p\u003e\n\u003ch1\u003eMain Features\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Highlights.jpg?v=1781817252\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFlexible Connectivity for Multiple Configurations\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Scene.jpg?v=1781817288\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eUniqueness\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Compact\u003c\/strong\u003e\u003cbr\u003eThe ZWO FF70 APO features a 70 mm aperture and 490 mm focal length (f\/7.0), offering an excellent balance between portability and performance.\u003cbr\u003eThe optical tube weighs just 2.5 kg, with a total system weight of 3 kg including mounting rings and dovetail plate.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Lightweight_Compact_6a0094db-2d0d-4db9-9cff-0b07124ecbb2.jpg?v=1781817394\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Element Optical Design\u003c\/strong\u003e\u003cbr\u003eThe FF70 APO features a four-element, fully air-spaced apochromatic optical design. All four elements work together to deliver a flat imaging field without the need for an additional field flattener.\u003cbr\u003eOne ED (extra-low dispersion) glass element is incorporated to effectively reduce chromatic aberration, resulting in improved color correction and image clarity.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Four-Element_Optical_Design.jpg?v=1781817483\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e44 mm Image Circle - Full-Frame Support\u003c\/strong\u003e\u003cbr\u003eWith a 44 mm image circle, the FF70 APO fully supports full-frame sensors and a wide range of imaging setups.\u003cbr\u003eIt delivers sharp star fields with excellent edge-to-edge performance, ensuring consistent image quality across the entire frame.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Full-Frame_Support.jpg?v=1781817560\" alt=\"\"\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative Flat-Field Design\u003c\/strong\u003e\u003cbr\u003eThe FF70 APO features a native flat-field optical design, eliminating the need for an additional field flattener.\u003cbr\u003eNo complex back focus calculations or spacing adjustments are required -- simply attach your imaging setup and start capturing once focus is achieved.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/No_need_for_a_leveling_mirror.jpg?v=1781817636\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eConvenient Design\u003c\/h2\u003e\n\u003col start=\"5\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCourse \u0026amp; Fine Focus Adjustment\u003c\/strong\u003e\u003cbr\u003eEquipped with a rigid 2.4-inch rack-and-pinion focuser, the FF70 APO offers precise control with a 1:10 course \u0026amp; fine focus adjustment mechanism.\u003cbr\u003eA built-in 360° rotator at the rear allows for smooth and accurate camera angle adjustments.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Focus_adjustment.jpg?v=1781818038\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetractable Dew Shield\u003c\/strong\u003e\u003cbr\u003eThe FF70 APO features a retractable dew shield, reducing overall length for improved portability.\u003cbr\u003ePrecision CNC machining and a high-quality painted finish, combined with an internal anti-reflection coating, help minimize stray light and enhance image contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-Release Mounting Rings\u003cbr\u003e\u003c\/strong\u003eThe mounting rings are detachable, allowing for quick and easy setup or teardown of the telescope.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Clamp.jpg?v=1781818143\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotography Extension Tube\u003c\/strong\u003e\u003cbr\u003eThe FF70 APO includes a photography extension tube with a 2-inch filter thread, along with rear adapters in M48x0.75 and M54x0.75 standards. This allows for easy integration with a wide range of imaging accessories.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Extension_tube.jpg?v=1781818199\" alt=\"\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch1\u003ePerformance\u003c\/h1\u003e\n\u003ch2\u003eOptical Layout\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Light_path.jpg?v=1781818239\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eStar Field Map\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Bitmap_image.jpg?v=1781818257\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Diagram\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Product_size.jpg?v=1781818295\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Product_parameters.jpg?v=1781818316\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch1\u003eWhat's in the box?\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Packing_List.jpg?v=1781818347\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch1\u003eFF Series Telescope Comparison\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/Comparison_Table.jpg?v=1781818375\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":49275543879937,"sku":"ZWO FF70-APO","price":599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0327\/2569\/6648\/files\/1_b4961e95-9739-42d8-aeb5-a4c054ff9b57.jpg?v=1781816770","url":"https:\/\/starizona.com\/products\/zwo-ff70-apo-flat-field-apochromatic-refractor","provider":"Starizona","version":"1.0","type":"link"}