I find manual focus with this lens pretty hard to get right, i did get some sharper pics but by that time he was pulling faces :P Also i changed to partial metering after this which gave a better result...Hopefully can post better ones to show how nice this lens can be, later in the month.
I like this challenge.. using my old Canon for it... like you said to John above "straight out of the camera"... i also try to do em all in b&w... 35mm... fun and hope i can learn something from it :) i like the shot you made...