A half frame camera is designed to use 35mm film in a half frame format, producing images that measure 18 x 24mm. This effectively doubles the number of exposures available on a standard roll of film compared to full-frame 35mm cameras.
Half frame cameras are popular among photographers who want to maximise their shooting capacity without changing film frequently. Understanding how to use a half frame camera helps in planning compositions and maintaining consistent image quality within the smaller frame size.