LensTip.com

Lens review

Carl Zeiss Touit 12 mm f/2.8

30 August 2013
Arkadiusz Olech

5. Chromatic and spherical aberration


Chromatic aberration

The crops below don’t leave any doubt when it comes to the longitudinal chromatic aberration - the tested lens simply doesn’t have the slightest problems with it.



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Carl Zeiss Touit 12 mm f/2.8 - Chromatic and spherical aberration

The same can be said about the lateral chromatic aberration which level is negligible, no matter what aperture you choose or what area of the frame you examine. A round of applause for the Zeiss.

Carl Zeiss Touit 12 mm f/2.8 - Chromatic and spherical aberration

Carl Zeiss Touit 12 mm f/2.8 - Chromatic and spherical aberration


Spherical aberration

The first picture in this chapter shows clearly that there’s no trace of ‘focus shift’- it means the spherical aberration is corrected in the right way. Due to the significant depth of field, offered by the tested lens, we didn’t manage to perform a test based on defocused light points; it was simply impossible to get big circles in front of and behind the focus at the same time.