This was one of the most advanced cameras of it time with a solar powered selenium light meter. It uses no batteries. It has two shutter speeds, 1/40th sec or 1/200sec, with a range of aperture settings from f2.8 to f22.
It is a rangefinder camera with a simple four position zone focus system and an ISO setting of 25-400. The selenium photocell selects aperture and shutter speeds making it a point and shoot camera.