Rover ... I was expecting them to try for f/1.0, though. For bragging rights if nothing else (though that wouldn't have been the truth anyway). https://www.sigma-global.com/en/lenses/a024_50_12/ EPZ is already out with a review. https://www.ephotozine.com/article/sigma-50mm-f-1-2-dg-dn-art-lens-review-36845 Looking sweet, and not that expensive for what it is (and what it does)... P.S. Posting in Sony forum because, while this lens is available in L-mount, it is not covered here, so might as well just limit it to the E-mount board...
me I'd guess, they don't take RSAs into account. The basically "flat" portion from f/5.6 to f/16 is not how diffraction works. Just my 2c, of course
Rover It should not fall off so much by f/5.6 I guess? Anyway, their results have been called iffy before (mostly as in "it's just too good to be true", though).
fotorrhoe Klaus wrote I'd guess, they don't take RSAs into account. The basically "flat" portion from f/5.6 to f/16 is not how diffraction works. Just my 2c, of course Definitely. Maybe the aperture mechanism is flawed and we see real f/8.0 instead of indicated f/16. Anyway, strange to release such a graph w/o comments.
