Zenit :




Zenit

The first Zenit was based on the Zorki rangefinder camera (a copy of the Leica II). In transforming the Zorki into an SLR, the simplest approach was taken: the rangefinder housing was removed from the top and replaced by a ground-glass screen and prism; a mirror was added below, with a rope-and-pulley setting system and the M39x1 thread mount was pushed forward to make room for the mirror inside.