TRI-Bahtinov Focus Mask - Meade SCT and a collimation tool

and a collimation tool

By post processing via RAW (video tutorials: https://youtu

creating custom compartments for your optical tube

the most compact and portable of Celestron’s German equatorial mounts

Even density with any aperture that keeps a flat surface as compared to other thin-film filters that have wrinkles and creases

TRI-Bahtinov Focus Mask - Meade SCT and a collimation toolWhat is the Tri Bahtinov? Essentially three Bahtinov masks in one, rotated over 120 degrees. It gives you three lines and three crosses to check focus and collimation, along three axis simultaneously. In addition to focusing, the tri Bahtinov so also indicates collimation status along three axis. This is interesting for e. g. Schmidt Cassegrain telescopes, where the collimation is done by push pull screws of the secondary mirror along three axis. When