About this product
This collimating eyepiece is a combination of a sighting tube and Cheshire eyepiece. The sighting tube’s narrow field of view and crosshairs provide a centering reference for the telescope’s optical elements. A reflective target face (set at 45 degrees to the illuminating hole) makes it easier to collimate the primary mirror.
Consider also our Premium Cheshire Collimating Eyepiece.
Please fill in the form below to ask a question or request a price match.