http://www.lenstip.com/index.php?test=obiektywu&test_ob=400
和开始的判断没有问题，全开中心分辨率35lp/mm（完全可用）,其它方面也很强，lenstip推荐镜头。全开分辨率略低于适马35 art和蔡司55 1.4

这是对焦的性能，别忽视了这点：
The autofocus performance depends strongly on the camera body. When the lens was attached to the Canon 50D and the 5D MkIII the whole set was pretty much predictable, with the number of misses reaching 6-7% which is good but also only a good result. The cooperation with the 1Ds MkIII was strange for a turn. The lens, even if positioned in a stable way in the same place before the testing chart, could oscillate for a short spells, jumping between two close focus positions several times; then it chose one of them but in a rather random way. More often than not the chosen position was correct but there were a lot of misses as well. The fact that the lens had also a pronounced front focus tendency didn’t help – once again you could observe it only when it was attached to the 1 Ds MkIII. While cooperating with the 50D and 5D MkIII the Sigma didn’t have such problems

Otus用的D3X机身，不能直接对比。
根据DXO的测试，同为5D3机身，Otus中心比S50A差，但边缘好。
不过DXO的测试也是一向不靠谱，此测试中Otus边缘和中心几乎完全一样，但其它测试都表明边缘要低不少，至少是肉眼可明显分辨的，说明DXO的数据有问题。
有实拍可证明DXO的数据是存在问题的，边缘不如中心的还是一眼可辨的，再对比S50A的实拍，更说明DXO数据有问题。这还有用D800机身的58/2.8G的对比 本帖最后由 一碗水不平6 于 2014-4-18 12:11 编辑

此站评测大概不够严谨，和其它正规评测室的数据有不小出入

比老50强多了，老50全开很肉

略不如35art？那不就跟老50没区别了吗？

100元的镜头也很强。

表示关注，如果真是比蔡司略低，那就不错了！价格可是低了不少，还是自动对焦！！那只ZF头2W多的价格也算无敌吐了

适马35 art

徕卡 Summilux M 1.4/50

蔡司55 1.4

适马50art分辨率