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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Telescope optics are normally aligned at the factory, but misalignment can occur in transport. This will result in poor images in your telescope eyepiece and camera.

For use with Newtonian telescopes.

The laser can be used on SCT telescopes but final adjustment will be required on the night sky.

1.25″ / 2″ Eyepiece Diameter.

The laser has been adjusted at the factory but can be re-adjusted if required.

Batteries Included

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