RE: [APML] Advice, suggestions needed on new images

["Lane, Jason R" <jason.lane@navy.mil>]

Hi Alan,

Try balancing RGB channels seperately in Levels using a sample point somewhere in the background where you know it should be black.  

-Jason


-----Original Message-----
From: astro-photo-bounces@seds.org
[mailto:astro-photo-bounces@seds.org]On Behalf Of Alan Voetsch
Sent: Tuesday, December 21, 2004 7:47 PM
To: APML
Subject: [APML] Advice, suggestions needed on new images


Hey all,

For the most part I am taking a hiatus from processing images until I
can do a little more in PS. Still, I got 4 shots on Fuji Super HQ200
last week. Other than a 105 minute M45 shot that doesn't show much,
there are 'funny' things with each shot and that's what I would like
comments on.  

First is a 185 minute image of M78 in Orion. Actually, with this one I
would just like some suggestions on how to proceed. I scanned raw at
4000 dpi, did minimal levels and curves before making a copy and
converting that to an 8 bit jpeg for your review. I love some of the
CCD shots of this and want to do it justice, if I have enough data.
Also, there is some weird 'diffraction pattern' in the lower right. Any
suggestions on how to get rid of it?

http://www.pbase.com/avoetsch12952/image/37754634


On this 200 minute shot of M81-M82 and friend, the print and the scan
both went strongly yellow. My exposure notes indicate that the shot was
fogged out. Meaning: When my wife woke me up at 4:50 to end the
exposure, a layer of fog or clouds had come in and the guidestar was
lost. Still, it looks OK, other than the yellow. Question: is the
yellow from the fog, or a film response problem? Can it be modified in
PS so it looks presentable? Scanned at 4000 dpi, light levels and
curves, converted a copy to an 8 bit jpeg.

http://www.pbase.com/avoetsch12952/image/37755421


And finally, another 200 minute shot of M45. Notes say that the 4-5 day
old moon was up for at least part of this exposure. The color looks
sort of weird. Can it be repaired, and how? Processing same as above,
minimal.

http://www.pbase.com/avoetsch12952/image/37756071

Your help and advice are, as always, greatly appreciated.

Thanks,
Alan

=====
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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