p.1 #1 · Sigma 30mm f1.4 Art performance on full frame?
The new Art version of the Sigma 30mm f1.4 covers full frame without any mechanical vignetting. Has anyone see any resolution testing or reviews done on a full frame body? I've seem some5d3 shots on the forum, but nothing really showing how good or bad the lens is at the edges on FF. I have the lens, but only crop bodies, so I can't check myself.
As far as why, I already own the lens and am contemplating getting a 6D. Thus, I was wondering how bad it is at the edges on full frame. Never said it would be as good as the 35mm f1.4, it's a $500 lens versus a $900 lens (actually, for me on full frame it's a $0 lens versus a $900 lens).
p.1 #5 · Sigma 30mm f1.4 Art performance on full frame?
Holy cow! That's pretty impressive. I thought it was going to look 'acceptable' but that looks pretty damn well, IMO. I'd say just keep it, and enjoy it, don't compare it, there is no point. It's not that I'm not a pixel peeper sometimes, but those examples look pretty good.
p.1 #9 · Sigma 30mm f1.4 Art performance on full frame?
The old one definitely didn't cover FF, and I wonder why they would have changed such a good lens. Perhaps the ones that claim FF coverage only tried closeups? That's what you usually see when people say their Nikkor 35/1.8 works fine on FF. It does, but not at or near infinity. The image circle always gets larger at close range because of the exit pupil moving further from the image plane.
Edit: All the examples in the other thread are closeups. As usual.
p.1 #10 · Sigma 30mm f1.4 Art performance on full frame?
Huh. The samples in that thread show a fair bit of corner shading at f/1.4, which I would imagine would end up fairly hard at around f/5.6 or something. The old 30/1.4 looked similar on APS-H wide open, and would show more pronounced vignetting upon stopping down.
p.1 #11 · Sigma 30mm f1.4 Art performance on full frame?
Makten wrote:
The old one definitely didn't cover FF, and I wonder why they would have changed such a good lens. Perhaps the ones that claim FF coverage only tried closeups? That's what you usually see when people say their Nikkor 35/1.8 works fine on FF. It does, but not at or near infinity. The image circle always gets larger at close range because of the exit pupil moving further from the image plane.
Edit: All the examples in the other thread are closeups. As usual.
Maybe it barely covers Canon APS-C (1.6x) but not Nikon/Sony APS-C (1.5x)? Actually I do have both the 30/1.4 (old version) and the new 35/1.4: I could do a test on an A850 if people are interested.
