980329: M16  LCMY image with 5 minute luminance, and 3 minutes each CMY.  ST-8 with 18 micron pixels, and C14 at f5.5 (Optec focal reducer).  Color is not scientific (or true color) -- I just boosted blue and green by hand (probably too much :-) .  I will work on a more scientific process next (weighting exposure times based on camera spectral response).  There are those annoying blooms on bright stars, and color artifacts on many.  Plenty of digital processing yet to learn!  Registration and processing done with CCDOPS (SBIG) and Picture Window Pro 2.5.  I don't know if I used a valid method for combining color information and luminance.  Using Picture Window, I extracted the Hue and Saturation from a CMY combined image in HSL color space, then I combined them with the luminance image in HSL color space, using my luminance image as the L channel.

Same image as above except I sharpened the L channel before combining, and I used the Picture Window cloning tool to repair the worst blooming spikes.  Since I redid the HSL combine, I didn't get the color adjusted exactly the same.  There seems to be some grain in the color now.

The above was adjusted for "True Color" based on measurements of sunlike stars through the filters.  I like the bluer ones better.