Tri-Bahtinov mask for Celestron C5 telescope

Tri-Bahtinov masks help to achieve a very precise collimation and focus on telescopes. I have designed this mask to fit on Celestron C5 SCTs. Two version for f/10 and f/6.3 are available.

General information about Tri-Bahtinov masks can be found here:

https://github.com/cytan299/tribahtinov

https://www.cloudynights.com/topic/536410-a-tri-bahtinov-mask-for-sct-collimation-and-focusing/