A little while ago, I saw a post about the performance of the K15mm wide
open. I went offline before I saw what the outcome of that discussion
was, but here's some shots from my sample. There's light falloff at 3.5,
but the corners are reasonably sharp.
http://members.iinet.net.au/~derbyc/15mm/01.htm
Not the most scientific of tests and I could have made better scans. But
there you go. I love this lens, just don't know how to use it very well
yet. It's a nice day, might go out and do some more shootin'.
D
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