The Cheshire Collimating Eyepiece from SkyWatcher is designed to assist with the accurate collimation of a Newtonian reflector telescope.
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. The Cheshire eyepiece has a means of providing illumination to a target face (set at 45 degrees to the illuminating hole) that will be used to collimate the primary mirror.
Price includes instructions and UK delivery
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