Planar T* 2/50 ZM The perspective of the human eye... The new standard for M-bayonet lenses. This lens is based on the renowned Carl Zeiss Planar design, a symmetric combination of 6 optical elements in 4 groups. Its features include excellent resolving power, high image quality over the entire field, and outstanding flare control. The Planar T* 2/50 ZM lens opens up new creative possibilities for all-round photography, documentation and photojournalism.