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Zeiss
21mm f/2.8 Biogon T* ZM (Black)
Wide angle prime lens for M-mount rangefinder cameras
The black 21mm f/2.8 Biogon T* ZM Lens from Zeiss is a manual focus, wide angle prime lens with TTL-exposure metering, that is compatible with Zeiss Ikon, Leica M, or Voigtlander M-mount rangefinder cameras. The Carl Zeiss range of T* ZM-mount lenses are designed to control geometric distortion, making them a great choice when photographing products or architecture. A bright maximum aperture of f/2.8 benefits working in low light, and with shallow depth of field.
9 lens elements in seven groups are engineered to eliminate geometric distortions, and the optics are treated with Zeiss T* anti-reflective coatings, for enhanced image contrast and clarity. 1/3 stop interval click stops allow for exact exposure. A 10-bladed iris produces smooth bokeh, and it features a minimum focusing distance of 0.5 m.