I wonder what exactly is the calibration of a camera body and a particular lens. I know the effect, but how it is achieved?
I recently bought 80-200 (the two-ring version), I was waiting for too long to get this lens and respectively I was very upset to have to return it back because of backfocusing issue (a lot users have experienced this bad effect of this particular combination).
I was wondering if I should give the camera body and the lens for calibration, as I didn't want to return the lens and wait for another one to try, but I gave it up. The reason for this is: I don't know what exactly is the calibration. My concerns were: I have other lenses, I don't have this issue with them (I actually do, with most of them, but I fixed that using the AF fine tune, while this didn't help for the 80-200) and I didn't want to risk adding similar problem with them, too (like frontfocus, for example).