Zenit-3m USSR 35mm SLR film camera KMZ M39 mount body

Zenit-3M, SLR camera
 35 mm, 65105208, M39 mount
"KMZ" plant, Krasnogorsk, USSR, 1965

Very good condition. Shutter works properly, but release button must be pressed strongly and vigorously (if pressed softly, shutter will fire with 1/500 sec speed despite of the shutter speed set). Self-timer does not work. Body has signs of use and age. Inside the viewfinder there is a thin vertical black line, a very small cleavage at the top of that line and microdust. Lens is not included, body only.
Note: it is a camera with M39x1/45.2 mount. It is possible to set a lens from rangefinder camera with M39x1/28.8 (LTM), but it will not work.

In 1961 and 1962 SLR camera "Crystal" was made by Krasnogorsky Mechanical Plant named after Zverev (KMZ), Krasnogorsk, USSR. "Crystal" has changed the first "Zenits": "Zenit", "Zenit-S" and "Zenit-3". 

"Crystal" had a cast aluminium solid body. Upper cover was cast too. Camera was technologically like "FED-1" and "Zorki-1".

In 1962 camera got a stamped brass rear cover and new name - "Zenit-3M". It was produced up to 1970. Totally 781 678 pieces were made (both "Crystal" and "Zenit-3M").

"Zenit-3M" was unified with rangefinder "Zorki-6": the same shutter and film rewind mechanism.  

Flash synchronization ("X") and self-timer. The only shutter speed when using flash is 1/30s.

Default lenses are "Helios-44"(2/58), "Industar-50"(3.5/50). 

Camera can use standard film cassetes and dual cylinder cassettes from Leica.

Characteristics:
S/number - 6510_5208
Frame size - 24x36.
Shutter speeds - 1/30-1/500, B.
Type of thread - M39x1/45.2
Body - aluminium.
Dimensions (mm): 138*91*51
Mass - 620 g