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Old 29-09-2016, 09:28 PM
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Atmos (Colin)
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Join Date: Aug 2011
Location: Melbourne
Posts: 7,013
Quote:
Originally Posted by poider View Post
So if the mount has a mechanical error and the guide scope corrects that error.... wouldn't that cause movement whilst the scope catches up with itself, and therefore blur the image?
Peter
The guiding is occurring at scales of a fraction of a pixel in size so as long as the mechanical error is small (not a big jitter) it can be guided out without any noticeable blurring. On a good mount the guide errors are considerably lower than the seeing conditions so the sky covers up the guiding
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