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Lens review

Voigtlander Nokton 58 mm f/1.4 SL II

29 September 2010
Arkadiusz Olech

7. Coma and astigmatism

Among all the 50 mm devices with the aperture of f/1.4, tested by us so far, only the Sigma was redeemed in the coma test. The slip-up of the renowned Zeiss in this category was very painful for a change – even in the APS-C/DX corner it featured the coma of really huge dimensions.

The crops below show that the Voigtlander is unfortunately closer to the Zeiss than to the Sigma here. Even 20 years ago showing a Sigma as an example to a Zeiss and a Voigtlander would be tantamount to heresy. Times change though and our crops speak for themselves.

Voigtlander Nokton 58 mm f/1.4 SL II - Coma and astigmatism


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Fortunately the Voigtlander 1.4/58 corrects the astigmatism well. It is superior here even to its 40 mm focal length brother which dealt poorly with this aberration near the maximum aperture. In the case of the 1.4/58 model the average difference between horizontal and vertical MTF50 function values reached 5% which is a very good result when it comes to lenses of such parameters.