{"product_id":"explore-scientific-es-binov","title":"Explore Scientific BinoViewer for Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEngage both eyes for more comfortable, immersive viewing\u003c\/li\u003e\n\u003cli\u003eIntegrated erecting prism provides correctly oriented images\u003c\/li\u003e\n\u003cli\u003eAccepts two matched 1.25\" eyepieces (not included)\u003c\/li\u003e\n\u003cli\u003eIndividual diopter focus for one eye\u003c\/li\u003e\n\u003cli\u003eParfocal design minimizes refocusing when switching from a single eyepiece\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific BinoViewer for Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific BinoViewer for Telescopes converts your instrument into a two-eyed viewing system, accepting a matched pair of 1.25-inch eyepieces to deliver a more natural and detailed visual experience. It features a diopter adjustment for one eye to achieve a perfectly merged focus for both, while the integrated erecting prism system provides a fully corrected image, making it ideal for both celestial and terrestrial observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Two-Eyed Advantage: Engaging Both Eyes for Enhanced Detail\u003c\/h3\u003e\n\u003cp\u003eViewing with a single eye can cause strain and fatigue during long observing sessions. By engaging both eyes, the Explore Scientific BinoViewer provides a more relaxed and immersive view. Your brain combines the input from both eyes, often resulting in a perceived increase in contrast and the ability to discern finer, lower-contrast details on planets and in deep-sky objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Erecting Prism: Correct-Image Views for Astronomy and Terrestrial Use\u003c\/h3\u003e\n\u003cp\u003eUnlike standard star diagonals that produce a mirror-reversed image, this BinoViewer includes an erecting prism system. This corrects the view to be both right-side-up and non-reversed, exactly as you see with your naked eye or through binoculars. This makes navigating star fields more intuitive and transforms your astronomical telescope into a high-power terrestrial scope for daytime nature observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCustom-Fit Ergonomics: IPD, Diopter, and Twist-Lock Adjustments\u003c\/h3\u003e\n\u003cp\u003eThe BinoViewer is designed for a comfortable, custom fit. The sliding interpupillary distance (IPD) adjustment allows you to perfectly match the spacing of the eyepieces to your eyes. A helical diopter on one eyepiece holder lets you compensate for differences in your vision, ensuring a sharp, single image. Secure twist-locks on both holders grip your 1.25\" eyepieces firmly without marring their barrels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eParfocal by Design: Seamless Switching from a Single 1.25\" Eyepiece\u003c\/h3\u003e\n\u003cp\u003eEngineered to be parfocal, this BinoViewer allows you to locate and center an object with a standard 1.25\" eyepiece, then swap to the binoviewer with minimal refocusing required. This convenience is critical for tracking moving targets or quickly comparing views. While it has been tested to work on a wide range of refractors, reflectors, and SCTs, some fast optical systems may require a Barlow lens (not included) to extend the focus point sufficiently to achieve a sharp image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to use the Explore Scientific BinoViewer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need \u003cstrong\u003etwo identical (matched) 1.25\" eyepieces\u003c\/strong\u003e, which are not included. Using identical eyepieces is crucial for your brain to merge the two images into a single, comfortable 3D-like view. For some telescopes, particularly fast Newtonians, you may also need a Barlow lens or optical corrector to reach focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the BinoViewer perform on the Moon with an 8\" Schmidt-Cassegrain?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt performs exceptionally well. An SCT is a great platform for a binoviewer. The two-eyed view enhances subtle contrast along the terminator and inside crater walls, making the lunar surface appear almost three-dimensional. The erecting prism also presents the Moon in its correct orientation, not flipped or mirrored.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"erecting prism\" in the BinoViewer do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe erecting prism corrects the image orientation. Telescopes naturally produce an inverted and\/or mirror-reversed image. This prism system flips the image so that it is \u003cstrong\u003eright-side-up and laterally correct\u003c\/strong\u003e, just like you would see with a pair of binoculars. This is excellent for terrestrial viewing and makes navigating the sky more intuitive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Explore Scientific BinoViewer difficult to focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it's designed for ease of use. First, achieve focus with your right eye using the telescope's main focuser. Then, close your right eye and use the BinoViewer's helical diopter adjustment to bring the left-eye view into sharp focus. Once set, both eyes will see a single, crisp image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the BinoViewer for birdwatching with my 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The integrated erecting prism makes it a perfect choice for terrestrial observation. With a pair of low-to-medium power eyepieces, your refractor becomes a high-magnification spotting scope, and the two-eyed view is far more comfortable for extended periods of birdwatching than using a single eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this BinoViewer work with my Newtonian reflector telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt may, but Newtonian reflectors often have limited back-focus. Because a binoviewer adds a long light path, you may need to use a \u003cstrong\u003eBarlow lens\u003c\/strong\u003e in the focuser before the binoviewer. The Barlow pushes the focal point outwards, allowing the binoviewer to reach focus. Compatibility depends on your specific telescope's design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e0811803034280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Explore_Scientific_ES-BINOV_BinoViewer_for_Telescopes_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBinoViewer for Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Explore_Scientific_ES-BINOV_BinoViewer_for_Telescopes_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":52909381746973,"sku":"ES-BINOV","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ExploreScientific-BinoViewer-for-Telescopes-1_6436baa0-1c97-48e8-8fd0-c525d94277aa.jpg?v=1789061527","url":"https:\/\/davidastro.com\/en-us\/products\/explore-scientific-es-binov","provider":"David Astro","version":"1.0","type":"link"}