This image has a bit of everything - dark, emission and reflection nebs and it's embedded within the rich star fields of Sagittarius - a riot of colour!
It's an LLsRGB image 7 hours total. I was initially going gather Ha for this as well but didn't bother as my effective 4 hours of Lum (2.5hrs Lum filter + 1.5hrs Synthetic Lum (Ls = desaturated RGB) revealed enough of it. Also my Ls had tighter stellar profiles than my L (1.5 vs 2.2 pixels FWHM) so combining the two kept my stars tight. Seeing on the 2 nights I imaged was around 2-3 arsecs (I won't mention the completely wasted night where the guide star frequently exploded into a 10 arcsec fuzz ball!
).
I shot this at the native FL of the Tak (F7.3, 1.67 arcsec/pixel) - nice wide, unvignetted flat field (using the 67 flattener). In any case I ended up cropping slightly for composition purposes because in the full frame the subject was off center ... and we can't have that!!
Enough waffle - here 'tis ...
Small:
http://www.pbase.com/gailmarc/image/116319109/large
Large (4MB - use <ctrl-> to zoom out & <ctrl+> to zoom in)
http://www.pbase.com/gailmarc/image/116319109/original
Hope you like it.
Cheers, Marcus