Re: [APML] M101-TechPan/PPF composite

["Daniel Reyna" <dreyna14@earthlink.net>]

Oooooo, one of the prettiest galaxies in the sky.  Great arm detail and
extension.  The colors of the HII regions seem a little bluish/magenta
though.

Daniel

----- Original Message -----
From: "Jeff Ball" <jeffball@zoominternet.net>
To: "Astro-Photo" <astro-photo@seds.org>
Sent: Monday, April 29, 2002 8:22 PM
Subject: [APML] M101-TechPan/PPF composite


> Hello all,
> I got to thinking about the LRGB and gathered up some crappy stuff and
> thought I would see if together they might come out OK.  The color was
> provided by PPF.  I don't even have the exposure on it.  The Techpan was
> shot one year ago in my light polluted yard with a fairly bright phase
> of the Moon if I recall correctly.  I used Rob Gendler's technique.  I
> thought the TP had decent resolution to use for this.  I am trying to
> squeeze what I can out of my little 1000mm focal length scope here in
> galaxy season.  I used Picture Window pro to remove some uneven
> illumination in the Techpan.  I scanned the negatives with the Polaroid
> Polacolor insight and manipulated the luminance levels as per our
> discussions here on APML.  The color shot was severely cropped in size,
> so the image scale is a little larger than I wanted.  A little noisy and
> grainy, but it was another learning experience.  Any tips appreciated.
> Thanks.
>
> http://www.astro-photography.com/m101_color.htm
>
> Jeff Ball
> www.astro-photography.com
> Ohio Valley Astronomical Society
> www.ovas.org
>
>
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