{"product_id":"vixen-telescope-sd-flattener-hd-kit","title":"Telescope SD Flattener HD Kit","description":"\u003c!--start tab--\u003e\n\u003ch1 id=\"description\"\u003eDescription\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eReady for taking great photos of deep-sky objects! \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SD flattener HD kit is designed for a flat focal plane to produce crisp image of stars with the SD series of APO refractors. It consists of a high-performance flattener lens and a connecting tube ring.\u003c\/p\u003e\n\u003cp\u003eThe SD flattener HD lens improves off-axis image quality greatly with a minimum change of the focal length. It covers a 44mm photographic field in diameter that is sufficient for the full-frame DSLR cameras.\u003c\/p\u003e\n\u003cp\u003eThe same anti-reflection AS coatings that are used for our high-end VSD100F3.8 renowned for extremely high light transmission (99.9% per surface) are provided on each of the lens surfaces of the SD flattener HD. Also, matte-finish is elaborate to eliminate internal reflections and loss of light completely.\u003c\/p\u003e\n\u003cp\u003eIf combined with a Reducer HD sold optionally, the focal length will be reduced by 0.79 times (F.7.7 to F6.1) without diminishing the image circle of 44mm. A result is sharp image throughout the photographic field of view.\u003c\/p\u003e\n\u003c!--end tab--\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!--start tab--\u003e\n\u003ch1 id=\"spec\"\u003eSpec\u003c\/h1\u003e\n\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSD Flattener HD: 2 elements in 1 group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eAS coatings (Over 99.9% light transmission every single surface)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\/Weight\u003c\/td\u003e\n\u003ctd\u003eSD Flattener HD: 58mm x 34mm long \/111g Spacer ring SD81: 57.5mm x 22.5mm long \/18g EX Tube 66: 68mm x 76mm long \/89g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOthers\u003c\/td\u003e\n\u003ctd\u003e52mm filters are usable with the SD Flattener HD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!--end tab--\u003e\u003c!--start tab--\u003e\n\u003ch1 id=\"warranty\"\u003eWarranty\u003c\/h1\u003e\n\u003cp\u003eVixen warranties its products to be free from initial defects in materials and workmanship for a specified period based on part type:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eVixen Electronic Parts: Limited One Year Warranty \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eVixen Mechanical Parts: Limited Two Year Warranty \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0390\/6029\/files\/Vixen_Distributor_Warranty_2021.pdf?v=1638896591\" target=\"_blank\"\u003eClick Here to read more\u003c\/a\u003e\u003c\/p\u003e\n\u003c!--end tab--\u003e\n\u003cp style=\"font-size: 16px;\"\u003eCA Residents: \u003ca href=\"https:\/\/explorescientific.com\/pages\/prop65\" target=\"_blank\"\u003eProp 65 WARNING(S)\u003c\/a\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45643720261873,"sku":"ES37246","price":267.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0570\/5711\/6312\/files\/37246_1-C001.jpg?v=1736423225","url":"https:\/\/villohome.com\/products\/vixen-telescope-sd-flattener-hd-kit","provider":"Villohome","version":"1.0","type":"link"}