M51, again, 12 inch at f6.8, 7 hours, 15 minutes
click image for 50% full size

another try at a beautiful galaxy pair... taken over two nights with the Meade Classic 12 inch at f6.8
a total of 29 300-second and 29 600-second exposures acquired and calibrated with warm pixel conversion,
standard deviation stacking, and basic color balance in Nebulosity 2.1p. cleaned up a little more in
Photoshop CS3 with some hi pass sharpening and background smoothing

guided through the Vixen ED80 (synta) , DSI pro I, and PHD via Shoestring GPUSB adapter