I chose to experiment with a more "orange" palette. I'm sure with some more work I could figure out how to make the OIII regions (notable around the Crescent) more obvious. Next time.
Butterfly and Crescent and ...
Now if you blow up the part of the image next to the crescent (200%) one can just barely see the Soap Bubble Nebula. In the red box. Arrow pointing at it. I'll give you a moment.
See it? Faint little guy. It is notable since it was discovered by a amateur astrophotographer in 2007. Now that we know where to look anybody can image it though I thought it was pretty neat to pull it out with a lil ol' 200mm Canon lens.
... Soap Bubble
Butterfly, Crescent, and Bubble
Taken at Lake San Antonio, CA Sept. 12-14, 2012
QSI583, Canon EF 200mm f/2.8L
Ha (3nm): 24x10min bin 1x1 @f/2.8
OIII (3nm): 24x10min bin2x2 @f/2.8
Total exposure time 8hrs
calibration, registration and post-processed in PixInsight