Archive 2012 · UPDATED: Twelve 50ish Lenses Do Battle! Part 2
Guest
Guest
p.2 #1 · UPDATED: Twelve 50ish Lenses Do Battle! Part 2
And now we see. Olympus 45/1.8 wide open just destroyed everything else. Af f/5.6 not as much, but the lead is still noticeable. Bifurcator wrote:
Really? The Leica is better wide open (2.8) than it is at f/5.6?
That was a bit odd. I expected it to be as solid as the Olympus 45/1.8, or maybe better.
p.2 #3 · UPDATED: Twelve 50ish Lenses Do Battle! Part 2
The Leica 45 isn't worse at f/5.6 than it is at f/2.8. If you look at f/2.8 vs f/5.6 side by side you can see they have essentially the same level of detail. Actually, the f/5.6 crop does have ever so slightly more detail, though the blacks are lighter since there's less corner shading from stopping down. You can see that the f/5.6 crop shows a little bit more of the actual book paper texture (the diagonal lines), as opposed to the f/2.8 crop. I actually re-tested (not on the same scene, since I've taken that down), this morning to make sure I didn't screw up the test on the PL 45, and the results were similar. I think the reason it looks softer is simply because every crop around it sharpens up so much from wide open that it looks softer in comparison. This result at the edge is consistent with other tests, such as Lenstip, which show the PL 45 to be excellent in the center, but only average at the edge.
The FD 50/1.4 I supposed could be bad, but it's really sharp wide open...definitely the sharpest across the frame of the legacy wide-aperture lenses, so I doubt it. Do realize that any of these lenses, save the Petri, are very sharp across the frame at f/5.6.
p.2 #4 · UPDATED: Twelve 50ish Lenses Do Battle! Part 2
Jman13 wrote:
The FD 50/1.4 I supposed could be bad, but it's really sharp wide open...definitely the sharpest across the frame of the legacy wide-aperture lenses, so I doubt it. Do realize that any of these lenses, save the Petri, are very sharp across the frame at f/5.6.
If it is then it is bad in exactly the same way as mine. I tested my FDn 50/1.4 against the 45/1.8 with pretty much the same results. Actually, I tested my FD at 1.8 just to be equivalent. It is of course slightly worse at 1.4. The FD suffers pretty bad spherical aberration at the wide end.
