Celestron Cheshire Collimation Eyepiece - 1.25" - 94182 type-eyepiece-accessories a 39mm aperture high quality

a 39mm aperture high quality concave lens collects starlight and acts as a beamsplitter - collimating and combining the background view and the 10 arc minute diameter projected red star

Fits securely around the tube assembly of the TV-102 telescope

The polycarbonate and aluminum housing allows the binocular to be lighter weight without sacrificing its durability

Magnification 1: 20-60x

Celestron Cheshire Collimation Eyepiece - 1.25" - 94182 type-eyepiece-accessories a 39mm aperture high qualityAbout 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