Thingiverse
BAHTINOV FOCUSING MASK FOR EXPLORE SCIENTIFIC ED80CF OTA
by tombkk
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Bahtinov focusing mask is a convenient astronomy tool to ease manual focusing of stars. The mask is placed in front of telescope's aperture. The telescope is pointed to a bright star.
The mask produces 3 diffraction spikes. Two of them form an "X" shape, and another spike crosses it, forming a "Ж" shape. Adjusting telescope focus causes the central spike to
move left or right, relative to the "X" spikes. When precise focus is achieved - the pattern becomes symmetrical.
The 3D-printed bahtin
The mask produces 3 diffraction spikes. Two of them form an "X" shape, and another spike crosses it, forming a "Ж" shape. Adjusting telescope focus causes the central spike to
move left or right, relative to the "X" spikes. When precise focus is achieved - the pattern becomes symmetrical.
The 3D-printed bahtin
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