My first serious try at M51 ended up having a serious focusing issue. Live and learn!
Still, I'm happy that I could snatch a couple of hours from last night to give it a shot.
Location = Portland Downtown
Temperature = 39F 3.9C
65subs x 2 min. = 2hr. 10min.
63L x 40 Darks x 40 Bias x 40 Flats
Main Telescope = Orion Mak 150 FL=1800mm + Canon 40Dh
Guiding Scope = ST-80 + SSAG
Mount = HEQ5 Pro
The usual suspects for processing = DSS with Mediam Sigma-Kappa Clipping, Photoshop, Carboni and GradientXTerminator.