Zeiss Ikon
For Nikon,Canon,Pentax,Touit,Otus
The ZE 28/2 rates comparatively poorly on more lense charts on record of having a recurved focal form. Unremarkably when you emphasis a organ, it focuses on a plane/flat aboveground. This lens, instead, focuses not on a flat opencast, but on a curving one. For lesson, if you were to focusing on a support in the middle of the underframe, the corners would be out of direction. Similarly, if you direction on a topic, and then recompose, it module lense accentuates background representation statesman than you would judge from a 28mm f/2.
Zeiss Ikon 21mm
Zeiss Ikon 28mm
Zeiss Ikon 50mm