Focal length-200mm
Relative aperture - 1:4
Aperture set - Zenit EM type - from 4 to 22
Focusing from 1.8m to infinite
Resolution:
In center - 50:
at the edges - 36
Weight - 980gr
From the 2 different makers marks it must have been in production when the factory switched logos. NathanDayton
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