Film type: 135 Frame size: 24x36 mm Viewfinder magnification: 0.65x Rangefinder base: 38 mm Lens: Industar 63, 45 mm f/2.8 (four element Tessar type) Angle of view: 51.3 degree Min. focusing distance: 1.5 m Shutter: leaf; electronically controlled in auto mode, 1/30 s or B in manual mode. Exposure metering: external with selenium meter Shutter speed range: 1/30 s – 1/500 s, B Aperture range: 2.8 – 22 Automatic exposure range: 8 – 18 EV Manual exposure range: 8 – 14 EV Film speed range: 20 – 320 ASA (14 – 26 DIN, 16 – 250 GOST) Flash sync: 1/30 s Film advance: manual Selftimer: mechanical, 8-15 s delay Filter thread: M52.5 x 0.75 Tripod thread: 1/4" or 3/8" (depending of manufacture period) Dimensions: 129 x 77 x 76 mm Weight: 750 g