Hi,
I captured this M16 between 7pm and 2am on the cloudy night of 29th July 2013 from my backyard. I managed to capture L: 10x10min, RGB: 3x10min each and Ha: 10x20min automated with CCDAutoPilot 5. 10min set up went about my daily chores and to bed, next morning all raw data were in the designated folder.
The blue color at the top is the cloud rolled in while capturing through blue filter.
Link to 10Mb image
http://www.astrobin.com/full/50011/?mod=none
Thanks for looking. David
below is an 11% size