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Lens review

Voigtlander Color Skopar 20 mm f/3.5 SL II Aspherical

24 November 2010
Arkadiusz Olech

5. Chromatic aberration

The thing that turned out well for the constructors of the Voigtlander’s 3.5/20 optics was the high degree of the chromatic aberration correction. You can see it well on the graph below.

Voigtlander Color Skopar 20 mm f/3.5 SL II Aspherical - Chromatic aberration

The highest level of aberration we notice at the maximum relative aperture, where, on the edge of the APS-C/DX sensor and the full frame alike, it amounts to 0.10-0.11%. It is a medium level. On stopping down the CA is reduced very quickly to less than 0.08% so to a low level, absolutely not bothersome in real life photos.


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Voigtlander Color Skopar 20 mm f/3.5 SL II Aspherical - Chromatic aberration

The longitudinal chromatic aberration is also not a problem for the tested lens and you can see it clearly in the view below.

Voigtlander Color Skopar 20 mm f/3.5 SL II Aspherical - Chromatic aberration