Carl Zeiss Contax Biogon 4,5/21mm wide-angle lens, 1956

Carl Zeiss Contax Biogon ƒ4,5/21mm wide-angle lens, 1956

Carl Zeiss Oberkochen Contax BIOGON 21mm f/4.5 rangefinder (RF) ultra-wide-angle lens, made in 1956.

Designed by Ludwig Bertele and based on the legendary 20mm ƒ/5,6 Russar MR-2 lens made by KMZ in USSR and designed by the russian optical genius Mikhail Mikhailovich Rusinov.

Photo credit: © WestLicht Photographica Auction

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