Glatter Laser Collimator – 532nm Green – Holographic – 2 “/1.25 “

This green laser collimator is designed for collimating Cassegrain type telescopes. It projects a pattern of concentric green circles. We recommend this laser for use in collimating our Hyperion telescope. Fits 2\\” or 1.25\\” focusers or visual backs. The collimator includes a diffractor that threads into the front of the laser, creating the concentric circle pattern. With the diffractor removed, the laser produces a standard single green dot.

This image shows the pattern projected onto a wall from the front of a Cassegrain telescope