Przemek Wielicki Thank you very much Volker. The 25/2.8 is an outstanding lens regarding image quality, ergonomics and build quality. However it has strong field curvature, when focused closer than ca. 1.5 meters. I like it very much. In fact, it is the only one lens I have been shooting with for a few months. All Zeiss lenses have stiff, precise focusing rings and perfectly marked distance scale. Kind regards!