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Lens review

Sony Carl Zeiss Sonnar T* FE 55 mm f/1.8 ZA

27 August 2016
Szymon Starczewski

6. Distortion

The chart below presents a comparison of results other full frame standard lenses as fast as about f/1.8 got in the distortion category.


Sonnar
1.8/55 FE
Canon
1.8/50 STM
Nikkor
AF-S 1.8/50G
Nikkor
AF 1.8/50D
Minolta
1.7/50
Tamron
SP 1.8/45
APS-C/DX
+0.72%
−0.41%
−0.49%
−0.20%
−0.30%
−0.31%
FF
+1.48%
−1.31%
−1.18%
−0.49%
−0.68%
−0.58%


There are no good news for the fans of the Sony FE system. In absolute terms the Sonnar 1.8/55 FE fares the weakest of all 45-55 mm f/1.7-1.8 lenses, tested by us so far. You can also add that, contrary to other constructions, it shows pincushion distortion. Still, in order not to go to extremes you have to remember that distortion lower than 2% is not bothersome and will be difficult to notice in typical real life photos.

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It’s also worth mentioning that for the JPEG files the distortion is reduced to an almost zero level – the results we got on the APS-C and full frame are, respectively: +0.06% and +0.18%.

Sony A7R II, APS-C, JPEG
Sony Carl Zeiss Sonnar T* FE 55 mm f/1.8 ZA - Distortion
Sony A7R II, FF, JPEG
Sony Carl Zeiss Sonnar T* FE 55 mm f/1.8 ZA - Distortion

Sony A7R II, APS-C, RAW
Sony Carl Zeiss Sonnar T* FE 55 mm f/1.8 ZA - Distortion
Sony A7R II, FF, RAW
Sony Carl Zeiss Sonnar T* FE 55 mm f/1.8 ZA - Distortion