The Ricoh 500 was a 35mm coupled rangefinder camera manufactured by Riken Optical Industries from 1957 to 1959. The Ricoh 500 was equipped with a fixed Riken Ricomat 45mm f/2.8 standard lens and a Seikosha in-the-lens leaf shutter whose speeds ranged from 1 to 1/500th of a second. The 1/500 shutter speed could not be set after the camera had been wound. This was typical for these older leaf shutters. It featured Triggermatic-Action film advance, which automatically cocked the shutter each time the film advance lever was fully pulled all the way to set a new frame.
Type: mechanical rangefinder film camera
Lens: non-interchangeable Riken Ricomat 45mm f/2.8 lens
Shutter: Seikosha MLX in-the-lens leaf shutter
Shutter speeds: from 1 to 1/500th of a second
Focusing system: fully coupled rangefinder