Aperture priority, often abbreviated A or Av (for aperture value) on a camera mode dial, is a setting on some cameras that allows the user to set a specific aperture value (f-number) while the camera selects a shutter speed to match it that will result in proper exposure based on the lighting conditions as measured by the camera's light meter.
Japan (日本; Nippon or Nihon; formally 日本国 or Nihon-koku, lit. "State of Japan") is a sovereign island country in East Asia.
is a Japanese manufacturer of optics and reprography products.
A rangefinder is a device that measures distance from the observer to a target, in a process called ranging.
A rangefinder camera is a camera fitted with a rangefinder, typically a split-image rangefinder: a range-finding focusing mechanism allowing the photographer to measure the subject distance and take photographs that are in sharp focus.
Scale focus, or zone focus, is a type of focusing system used by many inexpensive cameras from the 1940s and 1950s.
Yoshihisa Maitani (January 8, 1933 – July 30, 2009) was a designer of cameras for Olympus Corporation.
135 is photographic film in a film format used for still photography.