Bahtinov Mask for Celestron C6 SCT (SC 152/1500)

Bahtinov focusing mask designed for the Celestron Schmidt-Cassegrain Telescope C6 (SC 152/1500).

This version is intended to be installed on the telescope tube, providing a stable and repeatable fit for accurate astrophotography focusing.

The mask is designed including an additional ~2 mm clearance to accommodate self-adhesive foam (recommended 1.7 mm thickness). This ensures a secure fit without scratching or damaging the optical tube.