Celestron Cheshire Collimation Eyepiece - 1.25" - 94182 60 Degree Diagonals The #80A is a medium-blue

The #80A is a medium-blue filter that enhances the contrast of the cloud belts on Jupiter and the polar ice caps on Saturn

When compared to some wide field eyepieces developed especially for binoviewing

This Celestron Labs CB2000C Binocular Compound Microscope provides perfect illumination thanks its NA 1

the CPC Celestron Telescope will track continuously through the Meridian for uninterrupted imaging through the most ideal part of the sky

like fully multi-coated optics and BaK-4 prisms

Celestron Cheshire Collimation Eyepiece - 1.25" - 94182 60 Degree Diagonals The #80A is a medium-blueAbout the Celestron Cheshire Collimation Eyepiece 1. 25" The Celestron Cheshire Collimation Eyepiece is ideal for precise collimation of Newtonians and helpful for aligning Schmidt Cassegrains. This special eyepiece fits into 1. 25" focusers or diagonals. Alignment is easy using the small opening on one end and thin cross hairs at the other end. The collimation eyepiece is more accurate than the simple Collimation Tool. Celestron Cheshire Collimation