Well, I was able to give the 24/2 a work-out at this week-end's wedding. I didn't have a chance to really test the lens before hand, so I only shot less critical "fun" wedding stuff @ f/2 when I had the chance.
Big % of the subjects were OOF ... which I hadn't noticed when shooting a few right after getting it ... and frankly, I can't remember which A900 I used.
Anyway, it's back focusing, and required a micro adjust in the camera of -16 out of 20. My 85/1.4 requires only -3.
After an hour of being shuttled around the Sony system I got an Event Number so I can get it replaced.
I fear that big of an adjustment doesn't allow much further as the lens/lens mount ages. I only have 4 out of 20 clicks left.
Can't decide whether to replace it or not.
What do you think?