Re: [APML] NGC 2392 revisited

["Mike Cook, AF9Y" <mwcook@concentric.net>]

John,

   Very impressive!  I'm surprised that the deconvolution was that
effective on a film image.  I've never had much luck with the MaxIM
deconvolution.  Did he select the reference star and noise areas or
was it all auto?  Also how many iterations?  I've found AIP4WIN's
LR deconvolution much more effective on my CCD images.


From:           	"John Boudreau" <jeboud@mediaone.net>
To:             	<astro-photo@seds.org>
Subject:        	[APML] NGC 2392 revisited
Date sent:      	Tue, 1 Jan 2002 21:25:55 -0500
Send reply to:  	astro-photo@seds.org

> A Happy New Year to all of you!
> 
> I finally got around to processing some shots of NGC2392 taken back in
> October, using Fuji Provia 100F @ f/11 on my 12"SCT. The best 3 of 5 images
> were stacked in RegiStar, processed in Photoshop 6, and touched up with
> Bgsmooth.
> 
> The results were much better than my previous image of this object from
> early 2001, and a few days ago I showed the results to my friend and fellow
> APML'er Sean Walker. Since the noise level in the image was reasonably low
> (for film), he asked for the original RegiStar tiff file so he could try his
> hand at deconvoluting it with MaxIm DL. This helped pull out even more
> detail --- we have both tried our hand at film image manipulation with MaxIm
> DL in the past but this is a particularly interesting result, I think. I did
> feel the need however, to "soften" the result somewhat by cloning in my
> Photoshop version at about 20%.
> 
> Close up at: http://people.ne.mediaone.net/jeboud/ngc2392.htm
> 
> Wide field version: http://people.ne.mediaone.net/jeboud/ngc2392_wdfld.htm
> 
> And finally I put up a temporary page to show the comparison of my original
> result, and Sean's original deconvoluted version:
> http://people.ne.mediaone.net/jeboud/ps6_vs_mdl.htm
> 
> Comments of both flavors always welcome.
> 
> 
> John Boudreau
> jeboud@mediaone.net
> http://people.ne.mediaone.net/jeboud/astro.htm
> 
> 
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Mike Cook, AF9Y
http://www.webcom.com/af9y
mwcook@cris.com




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