Specs for KMZ Zorki-6

[MP Guy]

Lens Mount: Leitz 39mm screw mount (LTM)
Lens: 50mm/2.0 KMZ Jupiter-8, 6 elements/4 groups or 50mm/3.5 KMZ Industar 50, 4 elements/3 groups (non-collapsible) both single coated
Filter Thread: 40.5mm (Jupiter-8) 34.5mm (Industar-50 non-collapsible)
Minimum focusing distance: 3.3 (feet) 1.0 (meter)
Maximum aperture: f2.0 (Jupiter-8); f3.5 (Industar-50)
Minimum aperture: f16
Shutter type: horizontal rubberized cloth focal-plane
Shutter speed range: 1/30 second to 1/500 second; Bulb
Shutter speeds: B, 1/30 to 1/500
Flash sync speeds: 1/30
Flash sync via: PC terminals for FP and X, no hot shoe
Hot shoe dedication: No
Auto flash calculation: No
Film speed metering range: N/A
Exposure compensation: Unlimited
Battery: No batteries required
Multiple Exposures: No
Viewfinder: Combined viewfinder/rangefinder, single focal length view only
Rangefinder base: 67mm
Diopter correction: Yes, lever under rewind knob
Film advance: Multi stroke, ratcheted
Rewind: Knob
Battery Check: No
Tripod Mount: Metal, 3/8 X 16 European thread
Self Timer: Yes
Meter readout: No
Manufactured by: KMZ, Moscow, former USSR
Production dates: 1959-1966

Notable features: Uses most, but not all, lenses made for the Leica/Canon screw mount cameras. Hinged back with fixed take-up spool. Shutter speed dial spins with shutter, best to set shutter speed AFTER winding film. Neckstrap lugs on body.