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楼主 |
发表于 2012-7-28 16:37
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Both lenses are just as sharp as one another.
The falloff on the S4s is more gradual as compared to the UPs. That is, the focus point of both lenses will be identical, for the S4s, as you get away from the focus point, things become gradually less and less in focus, whereas for UPs, as you get away from the focus point, things become dramatically less in focus. Think of a graph: things in-focus (y-axis) vs. distance (x-axis). The S4's would have a bell curve (also known as the "Cooke look"), the UP would have a tack-like (spiky) curve (thus the expression "that Zeiss is tack-sharp").
As far as I know, there is no way (filter or post-production plugin) to make an UP look like an S4.
However, if I were forced to "make" an UP look like an S4, I would open up the UP so that the falloff "looks" softer due to the shallower depth of field. But I really wouldn't be fooling anybody.
I prefer the S4s because the falloff is smoother and less jarring. Other people love the UPs and MPs for that "bamm" in your face sharpness. The new Leicas are a mix between the S4s and MPs (not as smooth as the S4s and not as tack-sharp as the UPs and MPs). |
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发表于 2012-7-28 16:03
