{"product_id":"william-optics-cat-61-wifd","title":"William Optics Cat 61 WIFD","description":"\u003cp\u003eIntroducing the Cat 61 Astrograph f\/4.9, a masterpiece of precision engineering. With its advanced optics and f\/4.9 focal ratio, this telescope will allow you to capture stunning celestial images.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eHighlights:\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eExceptional Optical Quality\u003cbr\u003e\u003c\/strong\u003eBoasting a Petzval-like design and a fast f\/4.9 focal ratio, this telescope offers sharp, detailed views across a wide field—perfect for stargazing and capturing celestial wonders. Enjoy hassle-free imaging without the struggle of backfocus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurability Meets Portability\u003cbr\u003e\u003c\/strong\u003eCrafted from CNC-machined aluminum, the Cat 61 WIFD provides durability without sacrificing portability, ensuring it’s always ready for your next adventure under the stars.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Focusing System\u003cbr\u003e\u003c\/strong\u003eThe state-of-the-art WIFD focuser allows for fine control, significantly enhancing image clarity for both visual and photographic pursuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVersatile Camera Compatibility\u003cbr\u003e\u003c\/strong\u003eDesigned to connect seamlessly with a variety of cameras and astrophotography accessories, the Cat 61 WIFD is a versatile tool for capturing the universe.\u003c\/p\u003e\n\u003cdiv class=\"static-tabs__nav\"\u003e\u003cstrong\u003e\u003clabel class=\"static-tabs__tab-label h5\" for=\"tab-trigger-static_tab_item_gPWTTb\"\u003eSpecification; \u003c\/label\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"static-tabs__content-wrapper\"\u003e\n\u003cdiv id=\"content-static_tab_item_gPWTTb\" class=\"static-tabs__content prose\"\u003e\n\u003cdiv class=\"definition specification\"\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eLens Type\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e4-Element Petzval\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e300 mm\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e61 mm\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eFocal Ratio\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003ef\/4.9\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eImage Circle\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e46 mm\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eFocuser\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cspan\u003eWIFD R\u0026amp;P Focuser\u003c\/span\u003e \u003cspan\u003eCompatible with EAF\u003c\/span\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eFocuser Travel\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e0-42 mm (Ruler to 50mm)\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eAdapter Included\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cspan\u003eTilt Adjuster\u003c\/span\u003e \u003cspan\u003eM60 → M54 Rotator\u003c\/span\u003e \u003cspan\u003eM54 → M48 Adapter\u003c\/span\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eOptional Flattener\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eNo Flattener Required\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eT-Mount Support\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cspan\u003eCanon EF, RF\u003c\/span\u003e \u003cspan\u003eNikon F, Z\u003c\/span\u003e \u003cspan\u003eSony E\u003c\/span\u003e \u003cspan\u003ePentax K\u003c\/span\u003e \u003cspan\u003eMFT (M4\/3)\u003c\/span\u003e \u003cspan\u003eFUJI X\u003c\/span\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCamera Format\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cspan\u003eFull Frame\u003c\/span\u003e \u003cspan\u003eAPS-C\u003c\/span\u003e \u003cspan\u003eM4\/3\u003c\/span\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDovetail Type\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eVixen ↔︎ Arca-Swiss\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eTube Length\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e365 mm\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eOTA Weight\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e2.47 kg \/ 5.45 lbs\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eTotal Weight\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e3.39 kg \/ 7.47 lbs\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cp\u003e\u003cstrong\u003e\u003clabel class=\"static-tabs__tab-label h5\" for=\"tab-trigger-static_tab_item_giqYX7\"\u003eDiagram Reports;\u003c\/label\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/williamoptics.com\/cdn\/shop\/files\/Redcat-61-Diagram-01.jpg?v=1710231843\" target=\"_blank\"\u003e\u003cimg class=\"filter-invert-bw\" width=\"100%\" height=\"auto\" src=\"https:\/\/williamoptics.com\/cdn\/shop\/files\/Redcat-61-Diagram-01.jpg?v=1710231843\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/williamoptics.com\/cdn\/shop\/files\/Redcat-61-Diagram-02.jpg?v=1710231843\" target=\"_blank\"\u003e \u003cimg class=\"filter-invert-bw\" width=\"100%\" height=\"auto\" src=\"https:\/\/williamoptics.com\/cdn\/shop\/files\/Redcat-61-Diagram-02.jpg?v=1710231843\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":54124329468218,"sku":null,"price":109800.0,"currency_code":"INR","in_stock":false},{"title":"Gray","offer_id":54124329500986,"sku":null,"price":109800.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/1456\/0826\/files\/k1.jpg?v=1790253217","url":"https:\/\/edisla.in\/products\/william-optics-cat-61-wifd","provider":"EDISLA","version":"1.0","type":"link"}