The Distagon 35/1.4 is a long awaited lens by many. It is a manual focus SLR lens by Zeiss that is expected to excel in optical performance over other auto focus competitors, so lots have high expectation of this lens. However, how does it fare in lab?
...The tested lens is outstandingly sharp in the frame centre and provides useful photos up from the maximum relative aperture but exactly the same was written about the Canon 1.4/35L. When we pass to the frame edge, the cheap Samyang provides better images than the Zeiss. The lateral chromatic aberration is corrected well, but the problem is that the longitudinal CA is a lot higher and it doesn’t present the Zeiss in a favourable light, especially when compared to its rivals. The distortion of the Zeiss is, to tell you the truth, the lowest but the differences between the tested lens and other competitors aren’t huge. Despite being the heaviest and the biggest instrument the Zeiss didn’t fare well in the category of vignetting, losing again to the cheap Samyang or the small Sony. The coma is corrected in a splendid way only on the APS-C/DX sensor, becoming already distinct in the corners of full frame. The work against bright light can’t be praised either as the majority of competitors fared better there....
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