Carl Zeiss C-Sonnar 50/1.5 ZM Leica M The powerful photojournalist fast, compact and accurate The C Sonnar T* 1.5/50 ZM lens is the modern technological reincarnation of the classical Sonnar 1.5/50, the fastest standard lens of its time, for the Contax II rangefinder camera. It is fast, very resistant to flaring and unusually compact therefore the C in the lens name. With its well controlled distortion, the lens produces a very accurate representation of objects. It can take the same filters whi ...