Synchro:  FP, X switch type contact, incorrect flash prevention. Automatic exposure control:  Aperture preferred automatic exposure control electronic shutter type. TTL Direct Light Measuring System, center-weighted for bright, and averaging for dark conditions. Measuring range:  ASA 100 from F1.2, about 60 seconds to F16, 1/1,000 second. (about EV 5.5 - EV 18) (at normal temperature and humidity). Light sensors:  2 SBC sensors for actual exposure and 2 Cds for metering information in auto and manual mode. Measuring system:  Full aperture center weighted metering. Measuring range:  EV1.5 - EV17 (ASA 100 with F 1.2 standard lens). Light sensors:  2 CdS sensors. Zero-method with needle visible in viewfinder. Film speed Setting:  ASA 12 - 1600, B y lifting and rotating film speed dial. Power source:  Two 1.5V silver oxide batteries [Eveready (or UCAR) S-76 or equivalents] . Viewfinder:  Pentaprism type wide vision finder. Self-timer:  4 - 12 sec delay lever type with 180° maximum angle, can be stopped and reset after actuation. Hot shoe socket:  OLYMPUS accessory shoe (optional) attachable.