Hello all...
Tried a mega-session on the SMC last night, 30 x 10min exps, no in camera noise reduction - I hoped the shear numbers of subs would smooth out any Signal to Noise problems!
On final inspection the image suffered from soft focus and light pollution.
Think I'm heading in the right direction hopefully, but I don't think this is one of my best!!
Canon 40D (modded)
Canon 70-200mm f4L lens, 200mm @ f4
Skywatcher Synscan EQ5 mount
Autoguided with PHD
30 x 600sec exposures, iso1600
Stacked in Images Plus - tried "Exclude Average" this time, software deals with RGB data separately...worked out better than Average.

Tweaked in PS.
Higher Res...
http://s327.photobucket.com/albums/k...ent=SMC-HI.jpg
Cheers
Doug