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+--- Thread: Sigma 50mm f/1.2 announced (/showthread.php?tid=5687)
Sigma 50mm f/1.2 announced - Rover - 04-05-2024
... 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...
RE: Sigma 50mm f/1.2 announced - Klaus - 04-06-2024
The curve is just wrong ...
RE: Sigma 50mm f/1.2 announced - Rover - 04-06-2024
Do you mean the sharpness curve? Why?
RE: Sigma 50mm f/1.2 announced - Klaus - 04-07-2024
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
RE: Sigma 50mm f/1.2 announced - Rover - 04-08-2024
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).
RE: Sigma 50mm f/1.2 announced - fotorrhoe - 04-08-2024
(04-07-2024, 09:15 PM)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.
RE: Sigma 50mm f/1.2 announced - Klaus - 04-09-2024
f/16 should be MUCH worse.
RE: Sigma 50mm f/1.2 announced - MLonlooker - 04-11-2024
https://www.youtube.com/watch?v=D9WGWPiQ7gs&t=2s
This is one incredible lens!