This is a very special lens.

Started May 5, 2013 | User reviews thread
Joseph Tainter
Veteran MemberPosts: 8,349
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Re: This is a very special lens.
In reply to Leo James Mitchell, May 5, 2013

I believe the DFA is based optically on the old FA 100 F2.8 Macro, which I have. The thing that amazed me about this lens is that you can shoot at F22 and see only a little image deterioration from diffraction. It is tack sharp all the way to F16.

Joe

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