The Lumicon BinoViewer, the LD1040, allows you to use both eyes while looking through your telescope. These 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 available - - BK 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. For use on Scmidt-Cassegrain telescopes. 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.
Company Details
Lumicon International offers the best and most extensive line of astronomical filters and accessories in the world. Filters for every imagined visual and astrophotographic application are available in many configurations and sizes. Filters for... more
