⚡ Are my articles too long? Click this button for a condensed version!The KMZ Ajax-12, internally known as the F-21, is a Soviet subminiature spy camera built for the USSR's state security services (MGB, later KGB), designed to shoot 18mm x 24mm images on bulk-loaded, unperforated 21mm film using a … Continue reading KMZ Ajax-12/F-21 (1952)