The Pleiades

Here is an old standard - M45. I did do some significant time on it with multiple exposure sets up to 10 minutes. Some of the stars came out a bit funky - I think it was the optics - not really sure. Other than that , I'm happy with it. Image and exposure details are at:

http://www.jthommes.com/Astro/DSLR/M45.htm

Optic - Megrez II 80 mm APO at f/5.2
Camera - Canon 350D (Baader ACF modified)
Mount - G11/Gemini
Guiding - C8 at 1350 mm FL, DSI Pro, PHD Guiding

I think that looks great. I am curious about your combination of the different exposures though. ...all combined at once? or maybe get 3 different "good" exposures? Also, "star repair on edge stars"? I think of star repair as fixing blooms, but most of those edge stars are really tiny. (And they do look sharp, BTW.) I hope you don't mind if I try to steal processing techniques here.

Charlie