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Old 13-10-2019, 12:24 PM
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The_bluester (Paul)
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Join Date: Feb 2011
Location: Kilmore, Australia
Posts: 2,230
I have always done my flats as flats of about 8 seconds duration, and dark-flats shot in the same session with all the same settings and exposure time as the flats. I use them in APP to make a master flat then only use the master flat.
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