Yes, but when a good bunch of seasoned shooter find there is something wrong, they are not right?
It depends, if they expect to use the same setting combinations and post processing that worked on prior bodies on the 7D, then no, it won't work well.
You have to microadjust your lenses, learn the different AF modes, tweak your CF settings accordingly for the situations at hand, and adjust your post processing. The higher resolution is less forgiving and the post processing needs are higher.
You cannot take one sports car with stick 4 speed and drive it a certain way, then get into a completely different car with stick 6 speed and drive it the same way expecting to get the same results. You have to learn the nuances of the clutch, the best shift patterns, suspension differences, grip differences, etc. This analogy is actually quite accurate because when I would track cars, there would be so many that would brag about their new car but when they would race them, they actually would get slower times than before. However, those that have learned that same exact car by enduring the "training period" could do things that would befuddle the new owners. I have been at both ends of that spectrum, trust me. I could make the Z28s and Talons/Eclipses do things that puzzled folks to the point they thought I had nitrous or other power adders, but then I couldn't do things with the Z06 that others could take my car out and just kill with it. Frustrating to say the least...
Are there duds, yes, undoubtedly. My 7D should probably be sent in, all my lenses front-focus, and I just find that unbelievable. However after micro-adjusting, I really don't mind, because they all work fine now. But it would obviously be a body thing, where Canon should adjust it. Will I send it in? I don't know, no need right now.





