{"product_id":"celestron-stereo-binocular-viewer","title":"Celestron Stereo Binocular Viewer","description":"\u003ch2\u003eCelestron Stereo Binocular Viewer – See the Sky in Stunning 3D-like Detail\u003c\/h2\u003e\n\u003cp\u003eTake your visual astronomy to the next level with the \u003cstrong\u003eCelestron Stereo Binocular Viewer\u003c\/strong\u003e. Designed for use with two matching 1.25” eyepieces, this premium binoviewer lets you observe celestial objects using \u003cstrong\u003eboth eyes\u003c\/strong\u003e—a more natural and relaxing way to view that enhances contrast, sharpness, and perceived detail.\u003c\/p\u003e\n\u003cp\u003eWhether you're studying lunar features, double stars, or planetary surfaces, the Celestron Binocular Viewer allows for \u003cstrong\u003eextended, fatigue-free viewing sessions\u003c\/strong\u003e with incredible visual impact. It’s a powerful upgrade for serious astronomers who want a richer, more immersive observing experience.\u003c\/p\u003e\n\u003ch3\u003eWhy Use a Binoviewer?\u003c\/h3\u003e\n\u003cp\u003eYour brain is naturally wired to process visual information from \u003cstrong\u003eboth eyes at once\u003c\/strong\u003e, and that’s exactly what the Celestron Binocular Viewer is designed to do. Standard telescopic viewing relies on just one eye, which can lead to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eReduced contrast and visual detail\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEye fatigue during longer sessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA less immersive, more clinical viewing experience\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBy using \u003cstrong\u003etwo matched eyepieces\u003c\/strong\u003e, the binocular viewer:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eEnhances \u003cstrong\u003edepth perception\u003c\/strong\u003e and \u003cstrong\u003econtrast\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReduces eye strain\u003c\/strong\u003e and increases viewing comfort\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLets you observe \u003cstrong\u003efor longer with greater clarity\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFeels more natural, especially for those used to binoculars\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePremium Optical Design with BaK-4 Prisms\u003c\/h3\u003e\n\u003cp\u003eInside, the Celestron Stereo Binocular Viewer features \u003cstrong\u003ehigh-quality 22 mm BaK-4 prisms\u003c\/strong\u003e with \u003cstrong\u003efully multi-coated optics\u003c\/strong\u003e to ensure maximum light transmission, excellent edge-to-edge sharpness, and \u003cstrong\u003eno vignetting or light cutoff\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe result? \u003cstrong\u003eBright, high-contrast images\u003c\/strong\u003e that bring out subtle features on the Moon, planets, and deep-sky targets alike.\u003c\/p\u003e\n\u003ch3\u003eThoughtful, Durable Construction\u003c\/h3\u003e\n\u003cp\u003eBuilt to withstand regular use at the eyepiece, the viewer’s \u003cstrong\u003erubberised housing\u003c\/strong\u003e offers a secure, non-slip grip—even while wearing gloves. Additional features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually adjustable eyepiece holders\u003c\/strong\u003e for precise focusing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClearly marked diopter adjustment\u003c\/strong\u003e for easy setup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA \u003cstrong\u003ethreaded 1.25” nosepiece\u003c\/strong\u003e that accepts standard filters, so you only need one—saving time and money\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis makes the Binocular Viewer not only optically excellent but also highly practical and easy to use.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and Back Focus Considerations\u003c\/h3\u003e\n\u003cp\u003eThe Celestron Binocular Viewer is compatible with a wide range of telescopes, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSchmidt-Cassegrain telescopes (SCTs)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaksutov-Cassegrain telescopes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMany refractors\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt requires approximately \u003cstrong\u003e3.5 inches (90 mm) of back focus\u003c\/strong\u003e, which is available on most catadioptric and many refractor systems. However, \u003cstrong\u003eNewtonian reflectors and some spotting scopes\u003c\/strong\u003e may lack sufficient back focus, which could limit or prevent the ability to focus to infinity when using a binoviewer.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: This viewer requires \u003cstrong\u003etwo matched 1.25” eyepieces\u003c\/strong\u003e, which are \u003cstrong\u003esold separately\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eBinocular viewer for \u003cstrong\u003edual-eye viewing\u003c\/strong\u003e with any compatible 1.25” telescope\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncreases \u003cstrong\u003econtrast, detail, and viewing comfort\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUses high-quality \u003cstrong\u003e22 mm BaK-4 prisms\u003c\/strong\u003e with \u003cstrong\u003efully multi-coated optics\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually adjustable eyepiece focus\u003c\/strong\u003e and \u003cstrong\u003ediopter settings\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRubberised housing for secure grip—even with gloves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1.25” barrel is filter-threaded\u003c\/strong\u003e for using a single filter across both eyepieces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeighs approx. \u003cstrong\u003e18 oz (510 g)\u003c\/strong\u003e and uses \u003cstrong\u003e~3.5” of back focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with \u003cstrong\u003eSCTs, Maks, and many refractors\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSee the Difference – View the Universe with Both Eyes\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCelestron Stereo Binocular Viewer\u003c\/strong\u003e offers a more comfortable, immersive, and visually rewarding way to explore the night sky. Whether you're scanning lunar craters or observing Jupiter's moons, this accessory allows you to experience your telescope’s full visual potential—in natural stereo vision.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder now\u003c\/strong\u003e and give your observing sessions the clarity, comfort, and contrast that only dual-eye viewing can provide.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":55897345229174,"sku":"050234936910","price":289.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2235\/3014\/files\/Celestron-Stereo-Binocular-Viewer-Product-Photo-1.webp?v=1757494918","url":"https:\/\/welshastronomy.co.uk\/products\/celestron-stereo-binocular-viewer","provider":"The Welsh Astronomy Centre","version":"1.0","type":"link"}