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Old 09-09-2009, 06:19 AM
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multiweb (Marc)
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Join Date: Oct 2007
Location: Hinchinbrook
Posts: 18,522
Originally Posted by marki View Post
Have to agree with Doug here. The camera generates very little dark current, so little in fact I often don't bother with dark frames (flats yes due to dirty glass ). Marc I have never had a dark frame look like that in nearly two years of owning a QHY8. Perhaps you streched it so much it ripped in two .

This thread is till going? If you do flat fielding you do need to shoot bias to scale them correctly. So if you looked into your bias levels and inspect them you would see similar patterns.
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