The Ricoh 300 was 35mm rangefinder film camera introduced by Riken Optical Industries in the 1950s. The 300 was equipped with a non-interchangeable Rikenon 45mm f/2.8 lens. It had a mechanical Riken leaf shutter whose speeds ranged from 1/10 to 1/300th of a second plus B.
Specifications for the Ricoh 300
Type: mechanical rangefinder film camera
Lens: fixed Rikenon 45mm f/2.8 standard lens
Shutter: mechanical Riken leaf shutter
Shutter speeds: from 1/10 to 1/300th of a second, plus B