Zeiss 35mm f/1.4 Distagon Spherical Aberration Study
Just published in my Guide to Zeiss ZF / ZE Lenses is a study showing the behavior of the Zeiss 35mm f/1.4 Distagon compared to the Zeiss 35mm f/2 Distagon, the Nikon 35mm f/1.4G, and the Canon 35mm f/1.4L, with regards to spherical aberration and its effects on contrast and focus shift.