Sorry all, I forgot to give you the details on the shots...
Swan was 11 subs at 3 minutes each.
Also did the Helix nebula, 12 Subs at 3 minutes.
19 Darks at same exposure times and operating temperature.
19 Offsets at 1/4000sec
No flat lights.
Imaging train: Canon 400D on Skywatcher ED80. Prime focus at F/7.5 Processed with Deep sky stacker then cropped, labeled, framed and tweaked with Photoshop. Manually tracked with Celestron Nexstar 11 GPS as Guide-scope.
Hi Baz, it's a bit off topic but I noticed your distance indicator is a bit out. I'm sure I'm only about 40 k's away from you. It might need a minus sign in front of the latitude otherwise I've got a very long ride to work tomorrow