Product Description
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 centring 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.
Cheshire collimating eyepiece for accurate alignment of any Newtonian reflector telescope mirrors, ideal for ensuring the best optical alignment.
Accurate collimation is essential for ensuring the best performance from reflector telescopes, this quality easy-to-use Cheshire eyepiece is the recommended way to achieve this.
This collimation aid is also useful for aligning refractor optics very accurately.
Precision machined from aluminium with fine crosshairs and a clear bright mirror at 45 degrees with a sighting hole.
