ckw From UK - England, joined Aug 2010, 660 posts, RR: 17 Posted (6 months 1 week 5 days 23 hours ago) and read 2272 times:
Just looking at some pics from a recent shoot, and was disturbed to discover that a surprising number were a little out of focus.
Further checking revealed that they were all with the same lens - but shots with other lenses were fine. Damn, problem with the lens ... which was working fine last time I used it.
Then I thought maybe it needs re-calibrating with micro-focus adjustment. That's when I discovered my previously stored adjustments had disappeared (the lens in question required -10).
The explanation was simple - I'd had the body serviced, and clearly Canon had reset everything to factory defaults. Now while I picked up on the obvious often used settings, I'd completely forgot about the micro adjust - its not like you use it everyday.
Anyway, just a heads up which may save someone else some head scratching!
petertenthije From Netherlands, joined Jul 2001, 3270 posts, RR: 12 Reply 2, posted (6 months 6 days 23 hours ago) and read 1855 times:
To take the Canon 7D as an example:
1) open the menu and go to C.Fn III: Autofocus / Drive
2) Select option 5 AF Microadjustment
3) Select desired option (disable / adjust all by same amount / adjust by lense)
4) Select INFO to change the settings for the specific lense attached to your body.
5) Change the calibration, shoot a photo (preferrably of a calibration chart), check result.
6) Repeat step five until you're happy with the photos you get.
This should be done for every lense.
The first time I had this done by a professional, but since then I have done it myself. It's really simple and the results can be amazin.