The Zenit-3M camera with a Helios-44 2/58 lens is a Soviet small-format SLR camera. Produced at the KMZ named after Zverev (Krasnogorsk) in 1964.

This camera model replaced the Crystal camera. Unlike the Zenit-3 camera, this model was distinguished by a body with a hinged back cover. Also, this camera abandoned the mechanism for lifting the mirror using a cable.
The camera is in good working condition, all mechanisms work properly, there is no fungus and scratches on the lens, aperture and focus work smoothly. There are a few dust particles in the viewfinder. Camera not tested with film
The camera is sold with a durable leather case.

Housing - cast aluminum alloy, with an opening rear wall.
Shutter cocking and film rewind. Rewind retractable head.
The shutter is mechanical, curtain-slit with a horizontal movement of cloth curtains.
Cable sync contact with adjustable lead time.
Lens mount type - threaded connection M39 × 1 / 45.2.
Focusing screen - frosted glass.
Mechanical self-timer.
Export version of the camera, the inscriptions are engraved in Latin. The camera is in excellent working order. Lens Helios-44 2/58

Aperture 2.8,4,5.6,8,11,16
Release year 1964
Years of production 1962-1970
Lens number 0238768
Lens Helios-44 2/58
Manufacturer KMZ named after Zverev (Krasnogorsk)
Serial number 64051586
Good condition
Weight 620g
Total Issued 781678
Exposures B,30,60,125,250,500
Curtain shutter, cloth
Type mirror, SLR
Format 24x36mm, type 135