Quote:
Originally Posted by TrevorW
Justin why so many flats etc the rule of thumb should be about equal number based on lights as far as I'm aware
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Flat frames, like all images, contain noise. The more you take the less noise you will be adding to your image from the master flat. There are diminishing returns, of course. I have seen recommendations anywhere from 10 to 100 flats. I like to take 25 or so...
Cheers,
Rick.