Explore Scientific BinoViewer for Telescopes
Explore Scientific BinoViewer for Telescopes is backordered and will ship as soon as it is back in stock.
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We offer free US standard shipping on orders over $99 and 30-day returns on most items. Some limitations apply.
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A 1.25-inch binocular viewer with built-in erecting prisms that lets you observe through both eyes simultaneously — delivering a three-dimensional sense of depth on the Moon, planets, and bright deep-sky objects that single-eyepiece viewing cannot match.
Using both eyes reduces fatigue during long observing sessions and engages your brain's natural depth perception. The erecting prisms correct image orientation so the view is right-side up and correctly mirrored — useful for terrestrial daytime viewing as well as astronomy. Fully multi-coated optics throughout the light path maintain brightness and contrast.
The sliding interpupillary adjustment (58–74 mm) accommodates a wide range of face geometries, and the single-eye diopter control lets you fine-tune focus for each eye independently. A parfocal design means you can center a target in a single wide-field eyepiece, then swap to the BinoViewer without losing focus. Twist-lock, self-centering eyepiece holders secure your eyepieces without set screws that can mar barrels.
Key Features
- Built-in erecting prisms for correctly oriented views
- Fully multi-coated optics for maximum brightness and contrast
- Sliding interpupillary distance: 58–74 mm
- Individual diopter adjustment for each eye
- Twist-lock, self-centering 1.25" eyepiece holders
- Parfocal design for quick transitions from finder eyepiece
- Compatible with refractors, reflectors, and Schmidt-Cassegrains
Ideal For
- Lunar and planetary observers — binocular vision reveals surface detail that single-eye viewing misses
- Long observing sessions — two-eye viewing dramatically reduces eye fatigue
- Terrestrial and daytime use — erecting prisms deliver a correctly oriented image
Good to Know
- Eyepieces are sold separately — use matched pairs of 1.25" eyepieces for best results
- Works best with telescopes that have sufficient back-focus (SCTs, long-focus refractors); fast Newtonians may require a Barlow to reach focus
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Questions & Answers
Have a Question?
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What are the benefits of using a BinoViewer?
Using a BinoViewer provides a three-dimensional viewing experience, offering unparalleled depth and detail. It enhances comfort, reduces eye strain, and provides a more immersive stargazing experience, making it a valuable addition to any astronomer's toolkit.
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Will the BinoViewer affect the brightness of the observed objects?
The Explore Scientific BinoViewer is designed with fully multi-coated optics and erecting optics to minimize light loss. This ensures that you enjoy bright, clear, and detailed views without compromising on image quality.
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Do I need special eyepieces for the BinoViewer?
While the BinoViewer works best with a matching pair of high-quality eyepieces, it does not include eyepieces in the package. We recommend using Explore Scientific 52°, 62°, 68°, or 82° eyepieces for optimal performance and an enhanced viewing experience.
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What telescopes are compatible with the Explore Scientific BinoViewer?
The Explore Scientific BinoViewer features a universal 1.25" barrel, making it compatible with most telescopes. Whether you have a refractor, reflector, or compound telescope, the BinoViewer should integrate seamlessly with your setup.
