Tri-Bahtinov collimation and focusing Mask for Celestron C8/EDGE
Description
A Tri-Bahtinov mask is a tool used in astrophotography to assist with achieving sharp focus. It consists of three angled diffraction gratings which create a distinctive pattern when out of focus and helping the photographer to make precise collimation. This mask is designed to fit Celestron C8 and C8-EDGE telescopes. As filament I would recommend PETG or even TPU.
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