The Ricoh Auto Half EF2 is a half-frame 35mm film camera featuring a built-in Flash, producing 18x24mm exposures on standard 35mm film. As a half-frame camera, it yields double the number of exposures per roll — 72 frames from a standard 36-exposure roll — making it an economical and practical choice for everyday shooting. The EF2 variant adds a built-in Flash to the Auto Half series, extending usability into low-light and indoor environments without the need for a separate Flash unit. The Flash activates automatically when light levels are insufficient, consistent with the camera's fully automatic operation philosophy. A spring-wound motor automatically advances the film after each exposure, enabling rapid sequential shooting without manual winding. The motor is wound by pulling out an.