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Old 12-02-2013, 12:09 PM
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multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,080
I take flats every single time I image. I take them right after my imaging session with an EL sheet. At the same temperature. I also take 'dark flats' that I subtract from the 'light flats' to scale them. I do the dark flats at the same temperature and same duration as the light flats. For my flats regardless of the camera or filter I aim for an ADU between 9000 and 10000. I do about 80 lights and 100 darks.
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