The DA 40mm lenses are supposed to be exactly the same optical formula
as the old M 40mm f2.8, with more modern coatings. I can't say whether
that's true or not, I have an old M version and didn't see any
particular reason to duplicate it with an AF version. On the other had
the 40mm seems to be somewhat soft on the edges and corners wide open on
film, so you might see the same thing using a modern version on a FF camera.
On 1/29/2018 4:22 PM, Gonz wrote:
Anybody try this on full frame? How much does it vignette?
Thanks,
Gonz
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