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An Accurate Measurement Method for Telescope Focusing System Backlash

https://theskysearchers.com/viewtopic.php?t=32077

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An Accurate Measurement Method for Telescope Focusing System Backlash

Posted: Tue Sep 26, 2023 4:32 am
by Frank Chen
An Accurate Measurement Method for Telescope Focusing System Backlash
by Frank Chen

The measurement method of the telescope focusing system backlash described in this article was discovered suddenly when I was checking two autofocus curves with a friend some time ago. At that time, a friend sent me two pictures of autofocus curves. The curves are very smooth and fitting well, but the...
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Re: An Accurate Measurement Method for Telescope Focusing System Backlash

Posted: Tue Sep 26, 2023 8:13 am
by Graeme1858
Good article Frank. Thanks for posting.

I'm going to give it a go tonight.

Regards

Graeme
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