Quote Originally Posted by Mpieris View Post
Right now I'm leaning towards the 24-70 because of the IQ and range. But I'm not sure if I'm sacrificing a lot on the lower focal range for landscape shots. I'd like to use this for landscapes, say 65% of the time.
You can't use you're 17-85mm on your 5D II. So you are not sacrificing a lower focal range by getting a 24mm for your 5D II. A 17mm is equivalent view to a 27mm on your 5D II. 24mm on your 5D II is actually wider than your 40D with the 17-85mm wide open.

24mm is an excellent focal length for landscape.