The Steky III is a subminiature camera made by Riken Optical, designed for 16mm film. It belongs to the post-war wave of Japanese miniature cameras aimed at users who wanted a pocketable, discreet alternative to full-size 35mm bodies.

Sales data for the Steky III is extremely thin: a single recorded UK auction hammer result of £109 from 1998 is the only verified data point on file, so today's price guidance is indicative rather than firm. Condition, completeness of accessories, and working shutter all materially affect what a clean example sells for at saleroom level, and buyers should expect wide variance until more recent results emerge.