[APML] [ovas1] M51-color with Provia

["Jeff Ball" <jeffball@zoominternet.net>]

Hello all,
Tony, thanks so much for the info on scanning bit.  Kirk Rogers and I
were just discussing the importance of anything over 8 bits.  I took a
composite with Provia 400F and put it with the Luminance of the ST10E.
The Provia was a composite of 2 one hour shots a few weeks ago.  Thanks
to Rob Gendler for his Luminance/RGB article.  That is what I followed.
Don't know if it is the most appropriate for film, but it seemed to
work.  The biggest problem was red halos<g>  Yep, that's right.  The
dreaded red halos came through loud and clear on the luminance.  I tried
star shaping on the RGB layer prior to flattening, but my efforts did
not seem to work.  Oops, seems I left a red halo on the bottom left star
for you to look at.  Thanks again for all of the advice.  Here is the
image. Now I have to go play Nintendo with the kids.


http://www.astro-photography.com/m51_color.htm


Jeff Ball
www.astro-photography.com
Ohio Valley Astronomical Society
www.ovas.org 



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