The F-27 `Neozit` was made for KGB photographic surveillance purposes by KMZ at their special workshop starting around 1985. It is an evolved model of the F-21, but now almost completely electronic. The film size is 24mm x 24mm on 27mm film. Two individual cassettes hold the film. Electric motor to wind the film and cock the shutter. Film speeds set inside the body on a bakelite plate. Electronic shutter 1/60 – 1/1000 second. TTL meter reading through a lens from the film plane (see photos). F 2.8 / 25mm three element multi-coated lens. Automatic exposure.