Ok, new 7D owner here. Loving it. This is the first camera I have had, that is MA capable. I had done some focus tests with previous cameras - but as long as they were "in the neighborhood", it was good enough. After all, what was I going to do? I really scrutinized these this time.
What I found, on one of my zooms, was that it seemed to front-focus at one end of the range, and back-focus at the other. The middle seemed to be ok. Please bear in mind, this is very subtle.
Clearly, there is nothing specific MA can do about this - and it makes a kind of sense, from a lens design perspective. Certainly, if I tended to use one end of the range a bit more than the other, i suppose I could optimize that end a bit. Anyway.
My questions is: Is this typical, and have others found this same thing? I'm not thinking there is anything wrong here, or anything to worry about, but am looking to confirm.
BTW - of my half-dozen or so lenses, i found one that could use a bit of a tweak - the rest were ok.