yeah... these are standard "posed" shots, in challenging light conditions. Yes, I'm on single point AF, and I know f/2.8 can be challenging on hitting the focus right on, but 5.6 shouldn't have an issue.
I'm noticing it's front focusing A LOT. I took the lens in for service once before, maybe now I need to take both in. I've been using this camera since January of 2009. I could tell the focus started to fall about 6 months using the camera. Funny, I never had this problem when I was on Nikon (not to be a nikon troll). But prior to this, I was on a D300. Prior to that, Panasonic DMC-L1. Prior to that, XTi. not one camera I've had before had this much trouble focusing!