Quote Originally Posted by neuroanatomist
You're right, Rick, except that as Daniel points out, Canon uses a resolution max for their theoretical MTF charts that falls short of the resolving power of current sensors. So, these 'substantial improvements' aren't hype, they're real - provided you're using the lens on say, a 1D MkIIN.

John, you just uncovered Canon's future marketing plans. I am sure it work like this: When we see the 1Ds IV or the 1D V released we will see the "hype" that to "get the most out of" the new series II lenses you need to upgrade to the new camera body.