Bahtinov mask

by hansit, published

Bahtinov mask by hansit Jan 20, 2013

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2974Views 363Downloads Found in Physics & Astronomy
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The Bahtinov mask is a device used to accurately focus astronomical telescopes. It is named after its inventor Pavel Bahtinov. Accurate focusing of telescopes and astrographs is particularly of concern to those involved in astrophotography.

Wikipedia http://en.wikipedia.org/wiki/Bahtinov_mask

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2974Views 363Downloads Found in Physics & Astronomy
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Hi! For what size of telescope is this? I have an 200cm dobsonian

You look like you may have had the same problem I had. When I tried to make one back in August, it came out pretty well but the slots did not come out exactly the same size. It seems to be a slicer issue. Have you figured out how to get them perfect yet?

Hi Jooshs. I didn't notice that. i will take a closer look and get back.