Lumicon BinoViewer

Lumicon BinoViewerBinoviewers allow you to use both eyes while looking through your telescope. These new high-quality German-made telescope binocular viewers employ Grade-A BK 7 crown glass for their precision-polished prisms. Ordinarily BaK 4 is used as a recourse to improve color correction but in these binocular viewers color correction is so good that we may use the most transparent homogeneous bubble-free crown glass availableBK 7. Clear aperture is 22mm. Its straight-through design employs superior roof prisms for image erection. Each prism surface is multicoated for the highest transmission of light and freedom from ghosts. Focuser travel is 20mm. Installs in seconds into a standard 1.25 focusing mount. Eyepieces not included.Specifications:Clear aperture: 22mm Efficient beam-splitter design Multicoated roof prism erecting system 1.25 focuser threaded for filters Overall length: 120mm Weight: 23 oz. '

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