Have just lashed out on a 24-105 for my 50D and found the pictures weren't as sharp as i expected or would have liked.
So i've tried to adjust the mirco focus adjustment and find that that even at -20 i cant quite get it right.
Does anyone know if this is common for this lens as i think i've read that backfocus can be an issue.
Anyway, i should get it right. Does anyone know the proceedure for getting it checked out/calibrated by Canon. Do i need to send both the lens and camera to them or just the lens? How long does it take?
Also it is a 'true' Aussie lens from a shop, but came out of a 5D kit. Should this matter.
Thanks in advance.