I dont understand why the Body can't calculate the amount of correction needed
I mean they do use an algorithm to evaluate if the image is sharp in LV, why dont they write a small piece of FW which does this on his one ?
1. the software automaticaly takes a picture in LV for "maximal sharpness"
2. after that it will just "run" through the focus-correction form -100 to +100
3. compare the picture to the LV picture
4. voilá you should have your correction
Ok you would "waste" 200 actuations on the shutter, but seriously, for perfect, automated calibrated Lenses ?
Edit:
I tried to recalibrate the lenses on my own and i NEVER was able to see any difference between the shots ^^ Maybe from -10 to +10