{"product_id":"celestron-skymaster-20x80-binoculars","title":"Celestron SkyMaster 20x80 Porro Prism Binoculars","description":"\u003cp\u003e\u003cstrong\u003eCelestron SkyMaster 20x80 Porro Prism Binoculars\u003c\/strong\u003e — A substantial 20×80 astronomy binocular with large objectives, an integrated tripod adapter rod and 18mm eye relief for bright, stable views from a suitable support.\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/71018_skymaster_20x80_front.jpg?v=1534285952\" alt=\"Celestron SkyMaster 20x80 Porro Prism Binoculars product view\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\u003ch2\u003e80mm Light Gathering for Astronomy\u003c\/h2\u003e\n\u003cp\u003eThe 80mm objectives increase light gathering for star clusters, nebulae, the Moon and other bright deep-sky subjects, while 20× magnification brings out more detail than lower-power handheld binoculars. The 3.7° field remains useful for exploring larger sky regions.\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/71018_skymaster_20x80_back.jpg?v=1534285952\" alt=\"SkyMaster 20x80 optical body and objective lenses\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eOptical Design and Focusing\u003c\/h2\u003e\n\u003cp\u003eBaK-4 prisms and multi-coated optics support image brightness and contrast. Centre focusing with a right-eyepiece dioptre provides straightforward adjustment, while the 4mm exit pupil offers a practical balance between magnification and image brightness.\u003c\/p\u003e\n\u003cp\u003eThe published field of view is \u003cstrong\u003e3.7°\u003c\/strong\u003e, equivalent to 65m at 1,000m. Close focus is 33m (108ft), so this model is intended primarily for medium- to long-distance subjects.\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/71018_skymaster_20x80_side.jpg?v=1534285952\" alt=\"SkyMaster 20x80 eyepiece and focusing controls\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eTripod Use and Weather Protection\u003c\/h2\u003e\n\u003cp\u003eThe built-in tripod adapter rod slides to help balance the binocular on a suitably rated photographic or astronomical tripod. At 2.126kg and 20× magnification, tripod use should be treated as normal operation. A tripod is not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeather protection:\u003c\/strong\u003e Water resistant. It is not nitrogen filled and should not be treated as fully waterproof.\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/71018_skymaster_20x80_standing.jpg?v=1534285952\" alt=\"SkyMaster 20x80 tripod mounting arrangement\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eWhat Is Included?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSkyMaster 20x80 binoculars\u003c\/li\u003e\n\u003cli\u003eIntegrated sliding tripod adapter rod\u003c\/li\u003e\n\u003cli\u003eObjective lens caps\u003c\/li\u003e\n\u003cli\u003eEyepiece rainguard\u003c\/li\u003e\n\u003cli\u003eNeck strap\u003c\/li\u003e\n\u003cli\u003eNylon carrying case\u003c\/li\u003e\n\u003cli\u003eLens-cleaning cloth\u003c\/li\u003e\n\u003cli\u003eFive-language SkyMaster instruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e A tripod, solar filters and any item not listed above are not stated as included.\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/71018_skymaster_20x80_phone.jpg?v=1534285952\" alt=\"SkyMaster 20x80 carrying case and observing configuration\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ch3\u003eOptics\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;margin:20px 0;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eOptical design\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003ePorro prism binocular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eMagnification\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e20×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eObjective diameter\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eObjective focal length\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e328.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eAngular field of view\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e3.7°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eLinear field of view\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e65m at 1,000m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eExit pupil\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eEye relief\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eClose focus\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e33m (108ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eInterpupillary distance\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e56–72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eDioptre adjustment\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e-4 to +8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eFocusing system\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eCentre focus with right-eyepiece dioptre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eOptical coatings\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eMulti-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003ePrism glass\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eBaK-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eTwilight factor\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eRelative brightness\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eLimiting stellar magnitude\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e12.02 ideal; 11.02 moderate; 10.02 poor conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eConstruction and Size\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;margin:20px 0;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eWeather resistance\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eWater resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eNitrogen filled\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eTripod mounting\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eIntegrated tripod adapter rod; tripod sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eCarrying case\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eNylon carrying case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e228 × 120 × 325mm (9 × 4.7 × 12.8 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eBinocular weight\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e2.126kg (75oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2\u003eSolar Safety\u003c\/h2\u003e\n\u003cdiv style=\"background:#fff4e5;border-left:4px solid #f28c00;padding:16px;margin:20px 0;\"\u003e\n\u003cp style=\"margin-top:0;\"\u003e\u003cstrong\u003eWarning: Never look at or near the Sun through these binoculars.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are not solar binoculars and do not include certified solar filters. Direct or nearby views of the Sun can cause immediate and permanent eye injury.\u003c\/p\u003e\n\u003cp style=\"margin-bottom:0;\"\u003eDo not attempt solar projection and do not attach improvised or eyepiece-mounted filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/71018_skymaster_20x80_case.jpg?v=1534285952\" alt=\"SkyMaster 20x80 supplied equipment and accessories\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eInstruction Manual\u003c\/h2\u003e\n\u003cp\u003eThe official Celestron documentation is provided in \u003cstrong\u003eEnglish, French, German, Italian and Spanish\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003ca href=\"https:\/\/celestron-site-support-files.s3.amazonaws.com\/support_files\/SkyMaster_Series_Manual_5%20languages.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline-block;background:#111;color:#fff;padding:14px 24px;margin:6px;text-decoration:none;border-radius:4px;font-weight:600;\"\u003eView \/ Download SkyMaster Series Instruction Manual\u003c\/a\u003e\u003c\/div\u003e\n","brand":"Celestron","offers":[{"title":"Default Title","offer_id":55643787788664,"sku":"71018-CGL","price":199.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/01-71018-skymaster-20x80-01.jpg?v=1788002544","url":"https:\/\/www.darkclearskies.co.uk\/products\/celestron-skymaster-20x80-binoculars","provider":"Dark Clear Skies ","version":"1.0","type":"link"}