The Steky is unusual among subminiature cameras due to its full feature set. The camera came with an interchangeable three element fixed focus Stekinar Anastigmat f3.5 25mm lens, fully variable stopped down to f16. Shutter speeds for B, 1/25, 1/50, 1/100. Both telephoto, with viewfinder correction, and wide angle lens were manufactured. This example is missing the knob on the shutter speed selector, but it can me moved with any pointed object.

Make Riken
Model Steky Model II
Year c. 1950
Format 16mm
Shutter Riken
Speed B, 25 – 100
Lens Stekinar-Anastigmat
f3.5 25mm
Focus fixed
Aperture f3.5 to 16
Light Meter No
Rangefinder No