Introduction The Zeiss Sonnar T* FE 35mm f2.8 ZA is the smallest of five new full-frame E-mount lenses to accompany Sony’s full-frame mirrorless 36-Mpix Alpha 7R and 24-Mpix Alpha 7 cameras. With an $800 price tag it’s a premium model consisting of a high-grade optical construction with 3 of the 7 elements (arranged in 5 groups) being double sided aspheres – that’s a total of 6 aspherical surfaces.As well a rounded 7 diaphragm with 7 blades it features internal focusing (with no extending or rotating barrels) and has a minimum focusing distance of 1.15 ft. (0.35m)