
Precisely, I just wish the design was better (I fully realize its working "the way its designed" i just hate that the way its designed means it chooses to focus on the edge of the leaf at the VERY bleeding edge of the AF point, using spot AF, as opposed to the bird i really want on focus, Or grabbing the VERY EDGE of my dog's ear instead of her eye, Whatever is MOSTLY in the focus point should be what the camera focuses on, and things near the very edge should not affect that the way in my experience it does..)
For instance the Nikon D300s and its 51-points cover roughly the same area (ok slightly more) as the 7D's 19, but the points themselves are much smaller.... I would rather have the D300s' array compared to the 7D's as i feel personally that its more selective...
The points themselves on the 7D are bloody -huge- imho, and while useful when tracking moving subjects are less discerning when working with precise applications...
I guess that's what the spot focus is for, but I agree, the "huge" focus sensors can really throw the focusing off sometimes. I think that, combined with the 7D's high resolution compared to predecessors, is probably a lot of what causes reports of 7D focus problems. For what it's worth, this is not confined to the 7D. The large focus sensors are a "feature" of Canon cameras in general - I first learned about how large they are from a Fred Miranda Forums re-post of an RDKirk summary of Canon's AF system from years before the 7D appeared on the scene.