Topic summary
35 mm format
Extracted from the Wikipedia article 135 film.
Use in digital cameras
Digital sensors are available in various sizes. Professional DSLR cameras usually use digital image sensors which approximate the dimensions of the 35 mm format, sometimes differing by fractions of a millimetre on one or both dimensions. Since 2007, Nikon has referred to their 35 mm format by the trade mark FX. Other makers of 35 mm format digital cameras, including Leica, Sony, and Canon, refer to their 35 mm sensors simply as full frame.