35mm format

The 35mm format, or simply 35mm, is the common name for the 36×24 mm film format or image sensor format used in photography. It has an aspect ratio of 3:2, and a diagonal measurement of approximately 43 mm. It has been employed in countless photographic applications including rangefinder cameras (film and digital), mirrorless digital cameras, digital SLRs, point-and-shoot film cameras, and disposable film cameras.