{"product_id":"explore-scientific-0-8x-focal-reducer-fr0-8x","title":"Explore Scientific 0.8x Focal Reducer (FR0.8X)","description":"\u003ch1\u003eExplore Scientific 0.8x Focal Reducer\u003c\/h1\u003e\n\u003cp style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eThe Explore Scientific 0.8x Focal Reducer lets astrophotographers explore the wonders of wide-field astrophotography in an easy-to-use package.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eThe 0.8x Focal Reducer works with the following Explore Scientific telescopes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\" style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003ca title=\"Essential Series 80 mm wide-field telescope\" href=\"https:\/\/www.explorescientific.com\/products\/ed80-essential-series-air-spaced-triplet-refractor\" data-preorder-handle=\"ed80-essential-series-air-spaced-triplet-refractor\" style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eES-ED0806-02\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003ca title=\"Essential Series 102 mm telescope\" href=\"https:\/\/www.explorescientific.com\/products\/ed102-essential-series-air-spaced-triplet-refractor-telescope\" data-preorder-handle=\"ed102-essential-series-air-spaced-triplet-refractor-telescope\" style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eES-ED10207-02\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003ca title=\"FCD100 80 mm wide-field refractor telescope\" href=\"https:\/\/www.explorescientific.com\/products\/ed80-fcd100-apo-refractor\" data-preorder-handle=\"ed80-fcd100-apo-refractor\" style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eFCD100-0806-02\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003ca title=\"FCD100 102 mm refractor telescope\" href=\"https:\/\/www.explorescientific.com\/collections\/apo-triplet\/products\/ed102-fcd-100\" data-preorder-handle=\"ed102-fcd-100\" style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eFCD100-10207-02\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003ca title=\"FCD100 102 mm refractor telescope carbon fiber\" href=\"https:\/\/www.explorescientific.com\/products\/ed102-fcd100-air-spaced-triplet-telescope-carbon-fiber\" data-preorder-handle=\"ed102-fcd100-air-spaced-triplet-telescope-carbon-fiber\" style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eFCD100-10207-CF-01\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eThe 2-element 0.8x focal reducer turns the 480-mm-focal-length telescopes into devices with a focal length of 384 mm. This changes the telescopes from an f\/ratio of f\/6 to a much faster f\/4.8. \u003c\/span\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eThe device turns the 102 mm telescopes, with a focal length of 714 mm, into telescopes with a focal length of 571 mm: From f\/7 to f\/5.6. \u003c\/span\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003c\/span\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eCompare this with smaller diameter wide-field telescopes. The Explore Scientific ES and FCD100 80mm telescopes offer significantly more light-gathering aperture. The ES and FCD100 telescopes gather:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\" style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e1.3 times more light than a 70 mm telescope\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e1.8 times more light than a 60 mm telescope\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eA whopping 2.6 times more light than a 50 mm telescope\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eThe faster f\/ratio, coupled with more light-gathering aperture, allows more light to fall onto the camera sensor. For instance, to capture the same amount of light as a 100-second exposure with the Explore Scientific 80 mm takes 256 seconds on a  50 mm, 178 seconds on a 60 mm, and 131 sec on 70 mm – assuming the same f\/ratio. This means that the Explore Scientific 80mm telescope with the 0.8x Focal Reducer can capture far more detail faster than the competition. \u003c\/span\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eThe focal reducer, which has 55 mm (+\/- 2 mm) of back spacing, is threaded to accept a standard 42 mm T-ring, making attaching a camera easy. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003e\u003cspan style=\"--eac-o-font-size: 14px; --eac-o-letter-spacing: -0.14px; --eac-o-line-height: 22.4px;\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable cellspacing=\"0\" border=\"0\"\u003e\n\u003ccolgroup width=\"153\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"141\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eReduction Factor\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e0.8x\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eOptical Design\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e2-element lens\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eBack Focus (Spacing)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e55 mm ± 2 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eCamera Connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eT2 (M42 x 0.75) thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eFilter Thread\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e2-inch standard\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eBarrel Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e2 inch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eCompatible Telescopes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eES ED80, ED102, FCD100 series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e-Explore Scientific 0.8x Focal Reducer\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/astronomyplus.com\/pages\/explore-scientific-warranty\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific 1 Year Warranty\u003c\/a\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":49519772369125,"sku":"ES-FR0.8X","price":246.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ES-FR0.8x_7.webp?v=1781213582","url":"https:\/\/astronomyplus.com\/products\/explore-scientific-0-8x-focal-reducer-fr0-8x","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}