Mount: Nikon Bayonet mount, filter thread: 50mm. You can use Nikon lenses with this camera.
Aperture: up to f/16 setting: ring and scale on the lens
DOF preview: lever on the lens flange, also activates the metering
Focus range: 0.55-10m +inf
Focusing: Fresnel matte screen with split image rangefinder
Shutter: vertically travelling metal shutter; speeds: 1/2-1/500 +B; setting: dial on front of the camera
Shutter release: on the top-plate
Cocking lever: also winds the film, short stroke, retractable
Frame counter: additive type, auto-reset, window beside the cocking lever
Viewfinder: eye level SLR pentaprism
Exposure meter: CdS TTL metering, stop down way
Film speed range: 25-400 ASA setting: dial beneath the re-wind button, for setting press the small silver button beside it
Exposure setting: The metering system is automatically turns on by depressing the depth of field preview lever. The exposure is set by adjusting the exposure time and aperture until both the red minus and plus led are lit. Only plus or minus means over and under exposure.
Re-wind lever: folding crank, on the right of the top plate
Re-wind release: button, on the bottom plate
Flash PC socket: on the right of the prism, flash sync 1/60
Back cover: opens by lifting the re-wind lever, w/ memory slot; stamping Made in CCCP on it or alternatively an ISO and DIN speed chart from 20 ISO/14 DIN to 800 ISO to 30 DIN stamped MADE IN USSR
Tripod socket: ¼"
Body: metal; Weight: 911g
Battery: two LR44
Battery chamber: on the bottom plate
On/off switch: pressing the DOF lever
Serial no. first two digits show the production year