Luiz Felipe wrote:
I was looking for data on the available 180~200mm 2.8 lenses for K and
EF mounts, and found some story about how the DA* 200 2.8 is related to
the former 200mm full frame and so it possibly would cover said full frame.
That got me wondering if one of the tech-oriented actually knows the
image circle dimensions for the DA lenses, and how much is missing. I
know the difference should be proportional to the difference from APS-C
to 24x36mm, but would like ko know the size and borderline falloff
evolution on the DA lenses.
Just wondering, TIA. :-)
It varies. Some DA lenses cover full frame, some don't (it's the wide
angle ones that don't, in general).
As far as anyone can tell, the "DA" designation indicates that the lens
is optically optimized for digital and that it doesn't have an aperture
ring. It doesn't seem to specifically relate to the image circle.
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