stole the idea from tonylorentzen who made a very insightful video quite a while ago on the 7D iso noise.
-> vimeo.com/10473734

For the 5D 160, 320, 640, 1600 and 2000 are really good iso values to use. anything in between should be avoided due to lots of noise. So only a slight difference to the 7D.

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…