CZJ Black Biotar 5,8cm f2 M42

Started 3 months ago | Photos thread
RMGoodLight Forum Member • Posts: 91
Re: CZJ Black Biotar 5,8cm f2 M42

A very detailed page about the history and creation of the Biotar line, including the Carl Zeiss Jena Biotar 5,5cm f2 can be found in German:

Constructed in 1937 it was produced until 1961 by Carl Zeiss Jena. It was produced in different mounts. If the lens writing states the focal length in cm then it was build before 1950. The optical construction was not changed from its first design in 1936 until its end in 1961. The russians produced a Helios copy. There should be a lot of copies of this lens since it was a mass product of the early days of the GDR photo industry.

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