Film slitter

A film slitter, sometimes also called film splitter, is a device used in subminiature photography to slit 135 or 120 roll film into 16mm film or Minox film for use in subminiature cameras.^{[1] [2]}

The earliest film slitter was made in the 1950s by Suzuki Optical Works in Japan for use with their Echo-8 subminiature camera. This film slitter consists of a roller cutter which slits a strip of double-perforated 16mm film in half, into two strips of perforated 8mm film for Echo-8 camera^[3]