RE: [APML] Building M31

[Alan Voetsch <alanv12952@yahoo.com>]

Hey Jason,

I am unsure on how to proceed. I think I'll opt to match up exposures
of about the same length, on an equal basis. Then take those composites
and combine according to their relative exposure times. I'll search the
cd again maybe I'll find it.

Thanks,
Alan

--- "Lane, Jason R" <jason.lane@navy.mil> wrote:
> I think when you combine exposures of different times, you want to
> weight them according to the exposure times?  I'm not sure, but this
> seems to make sense.  In Photoshop, if you were bringing them all
> into an image as different levels, then the shortest exposure times
> would have the lowest opacity.  Does this make sense?  I think Jerry
> has a blurb on this in his photoshop CD-book, if you own a copy of
> it.



=====
SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
& http://www.pbase.com/avoetsch12952/fs102


		
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