Infinite Focus for Astrophotography

How to use a Bahtinov Mask

Bahtinov Focus Tools for DSLRs

Highest Precision Bahtinov Masks

Biggest Bahtinov Masks

Solar Filter - Sun Viewing

Best bahtinov mask I own!

Brian J.

Johannes's masks are the best. No more cutting out cardboard and chasing them down in the wind.

Sam L.

I wish I'd used a mask sooner. This makes everything so much easier. 

Sarah H.

The bahtinov mask cut my set up time in half! It's so much easier than focusing manually.

Aaron T.
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