Quote:
Originally Posted by bugeater
Even doing darks when I'm out taking shots isn't a problem. I just need to set the camera to do its thing while I'm packing everything else up. But yeah, I'll do some later and apply those to the data I've got.
Flats seem a bit more complex, since I need a light box. The images definitely aren't "flat" though, since when heavily processing faint shots they come up darker around the edges. Could that be related to coma?
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flats really need to be done on the night unless you keep your camera attached to the scope when its not being used. you don't need a light box you can do 'twilight flats'. set up your scope at sunset, point the scope to a clear patch of sky and set your dslr to AV mode and snap away.
simple - the hard part is getting setup in time for twilight at this part of the year!
Really need to see a non-drizzled/non-cropped version of the image to give much more advice to your capture.