FED is a well-known Soviet acronym that stands for Felix Edmundovich Dzerzhinsky. Rangefinder camera Manufacturer: FED Association Lens: FED 3.5/50 Lens mount: M39×1/28.8 screw mount. In pre-war models, the flange focal distance was not standardized, requiring individual adjustment. Film: 135-type film Frame size: 24 × 36 mm Focusing: Manual, via a rangefinder with a 38 mm base Exposure: Manual setting of shutter speed and aperture Shutter: Focal-plane (curtain) shutter, with speeds from 1/20 to 1/500 s and "B" (bulb) Flash: No flash synchronization contact Viewfinder: Optical, parallax-type; not integrated with the rangefinder Weight: 580 g ************************************************************************ Overall, the camera is good. It requires diagnostics and cleaning.