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Old Jun 4, 2007, 9:24 AM   #1
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same as the other but taken for the the center right edge.

http://www.texasbostons.com/edgesharp.jpg
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Old Jun 4, 2007, 9:23 PM   #2
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What I think is interesting is that the edge gets sharper at a larger aperture than the center does - very interesting. Looks like you'd want to avoid stopping the lens down all the way - that's pretty soft (both center and side). It's still an impressive lens.

Thanks for posting this (and mentioning before that many lenses are soft at their smallest aperture). I had been often using f22 (smallest aperture) with the Phoenix when I was taking flower macros and couldn't seem to get it right. I've changed to shooting a little wider open and have had much better pictures. This is an important point.
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Old Jun 4, 2007, 9:50 PM   #3
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I agree with Harriet, F8 looks the sharpest here but quality stays up there through most of the best range for center sharpness also. This is pretty much where I use my Kiron macro, F8 through F16, so the results are pretty close to what I would have expected.

Tim
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Old Jun 5, 2007, 6:10 AM   #4
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i was very surprised at the edge sharpness at 5.6.
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