翻墙看cooke S4和UP 50mm的小对比测试.
http://ramirocivita.wordpress.co ... cus-and-flare-test/ http://www.arridigital.com/forum/index.php?topic=6775.0ARRI ZEISS ULTRA PRIMES vs. COOKE S4 PRIMES 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). 莱卡难道真是MP和5/i的结合体? 上俩图。无图无真相嘛。
Focus-out of focus test UP2
Focus-out of focus test S4 50 2
Focus-out of focus test UP1
Focus-out of focus test S4 50 1
Focus-out of focus (exterior)(ND1.2 + ND0.9) UP
Focus-out of focus (exterior)(ND1.2 + ND0.9) S4 50
Flare test (interior) UP
Flare test (interior) S4 50
UP眩光
cooke眩光
原来网上图片是PNG的，我只能给压缩画质了，但是像素大小没缩。大家将就看吧。总体还是能看出S4 50和UP50颜色是有区别的，UP偏蓝，S4偏黄。S4色散大，但是两者的清晰度是一样的。S4的抗眩光貌似差了点，但是新款的panchro/i 50抗眩光貌似要超过S4i50和zeiss CP.2 50。 真希望cooke能专门做一个相机用的50头，哪怕就是S4i 50的光学呢，APS就APS，给装一个67口镜的镜筒该多完美呀。S4i 50太粗了，镜片一点点，好浪费。 细致的分析比较！ 但是为啥我就是那么喜欢cooke的眩光呢...
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