Bahtinov Mask for 80ED Download free files now ›
Free design files
Bahtinov focusing mask for an Orion 80ED (or similiar). It has 80mm aperture, a 16mm edge, and 2mm slots.
astrojargon would like to share their product with the following license Public Domain Read the fine print of this license
Additional info: Listed on Jan 03, 2009 Viewed 6197 times Report this item to Ponoko