High grade Schott optical glass is vat dyed for even color coating; then anti reflection coated for maximum light throughput; each filter has a metal filter cell and is threaded for use with 1.25 inch telescope eyepieces and filter threaded accessories
Handy color planetary telescope eyepiece filters help enhance your view of the planets and Moon; unveiling specific features and enabling you to discern more detail
The filter mount is precision manufactured from metal and is extremely thin to minimise shadowing and diffraction; the threads on both sides of the filter make it also possible to combine different filters
Nearly 3D Viewing: The Binocular Viewer turns the telescope into a binocular; This replaces the fatigue of observing with one eye; This means you can easily provide an immersive 3D viewing experience for lunar and planetary observations
With 1.85x and 3x Barlow: The BinoViewer will work on any telescope with approximately 4 inch of inward focus travel; If your telescope has less focus travel; you can adjust the focus using the 1.85x and 3x magnifying glass included with the BinoViewer