The Asahi Pentax Auto 110 is re single-lens reflex cameras made by Asahi Pentax that uses 110 film cartridges, which are still available today.
The Auto 110 was introduced with these three interchangeable lenses in 1978 and was sold until 1985. The complete system is sometimes known as the Pentax System 10, apparently for its official Pentax name, although most Pentax advertising only uses the camera name or Pentax-110.
This model represented the only complete ultra-miniature SLR system manufactured for the 110 film format, although several fixed-lens 110 SLRs were sold. The camera system also claims to be the smallest interchangeable-lens SLR system ever created.
The cameras and lenses were very small (the camera fits in the palm of a hand easily) and were made to professional SLR standards of quality.