The FED-35 1:4.5 28m/m (Russian: ФЭД) is a wide-angle prime lens for 35 mm rangefinder cameras with the M39 screw mount.
Minimum aperture =18
The lens was discontinued in 1941. During the Great Patriotic War the FED's technical documentation was lost. Only documents for the FED's first model and the FED Industar-10 had been preserved. The FED 28 mm f/4.5 lens' optical scheme is identical to that of Tessar-Industar. The lens is remarkable for its good sharpness and noticeable vignetting on the corners. The lenses are not coated. (contributed by pentaxist_B)
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Posted by: helg Date of publication: 11.02.2013