Okay, here - all are clickable for full size. Pictures are somewhat mundane in nature - just first shots with a new lens
All except two are straight from the camera with no edits.
This one - click for full size. I think it's really sharp (this one is at f/5.6, I think) - you can clearly see the faces of the two guys in center, as well as the faces of those in the booth.
Don't see much fringing...
[imgtall]http://www-personal.umich.edu/~pengbooo/f28mm/IMGP2644.jpg[/imgtall]
Here focus was on the closer tables, I think. Theres some movement blur here, too, and a lot of noise from K-7
Cropped a bit.
Flare's pretty good, considering the sun is near the center of the frame.
At close focus, some light processing. The flower to the right is in focus.
There you go
Pentax-F 28mm