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Old 18-02-2009, 02:27 AM
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Tandum (Robin)
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Join Date: Apr 2008
Location: Wynnum West, Brisbane.
Posts: 4,166
Quote:
Originally Posted by [1ponders] View Post
Darks must be the same exposure time as your flats Doug. You'll need to identify your flat exposures and apply that to your darks as well.
There is no way my flats can be the same exposure time as my darks. My darks need to be the same as my lights so how do I take a 20 minute flat, you can't. I think you meant to say darks need to be the same as your lights or darks and flats shold have the same F setting. I generally shoot flats to show about 30% on a PS hystogram. ie: 30% exposed.

Just to get it right :-
Light = an exposure of an object. (lenscap off)
Dark = an exposure of nothing. (lenscap on)
Flat = an exposure of a constant uniform light source. (lightbox on)
Bias = A quick dark exposure. (lenscap on)

Yes my images link isn't working, I'm moving it to a cheaper host.

Last edited by Tandum; 18-02-2009 at 03:53 AM.
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