Rare semiautomated camera. This camera is an export variant of camera Zenit-TTL. These cameras were produced by factory "KMZ"
(Krasnogorsk) since 1983 up to 1988. About 80,000 copies were made
Frame size 24X36mm, shutter is curtain type, TTL system
Lenses: series Helios-44M
Lenses for Zenit-12 are here
Adjustable shutter speeds - 1/30, 1/60, 1/125, 1/250, 1/500 of a second and "B".
The main difference from Zenit-TTL: the arrow of exposure meter is substituted by neon indicators