mt spokane: fair enough.
here are some jpegs that are 100% crops from the center and edge (not even the corner) shot at 24, 35 and 70. they were shot raw, processed to jpeg in lr with no sharpening, lens corrections, or any other adjustments.
they were all at 2.8 as well.
to me it seems that at 35mm, there is the biggest difference between the center and the edge, and i'm just wondering if others have noticed the middle range to be weakest with this lens.
please note i'm not complaining about a lack of sharpness at the edge when shooting wide open, just trying to get a sense of what others are experiencing.