Photography (IPA: [fә'tɒgrәfi] or IPA: [fә'tɑːgrәfi]) (from Greek φωτο and γραφία) is the process and art of recording pictures by means of capturing light on a light-sensitive medium, such as a film or an electronic sensor. Light patterns reflected or emitted from objects expose a sensitive silver halide based chemical or electronic medium during a timed exposure, usually through a photographic lens in a device known as a camera that also stores the resulting information chemically or electronically. Photography has many uses for business, science, art and pleasure.
Lens and mounting of a large-format camera
A historic camera: the Contax S of 1949 — the first pentaprism SLR
Nikon F of 1959 — the first 35mm film system camera
The word "photography" comes from the French photographie which is based on the Greek φώς (phos) "light" + γραφίς (graphis) "stylus", "paintbrush" or γραφή (graphê) "representation by means of lines" or "drawing", together meaning "drawing with light." Traditionally, the product of photography has been called a photograph, commonly shortened to photo.