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Old 02-06-2016, 08:30 AM
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Shiraz (Ray)
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Shiraz is offline
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,823
Originally Posted by Atmos View Post
Shouldn't you be able to get a pretty good idea on vignetting by taking a flat?
yep, I only need one sky flat, but not a cloud flat - and clouds are all there has been here has been since the first fleeting image showed some stars. Guess I should make up a flat box, so that I can do some calibrations when it is like this.
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