Photography is the process of creating images through the action of light. Light patterns reflected or emitted by objects are recorded on a sensitive medium or memory chip through time exposure. The process is carried out using mechanical louvers or electronically synchronized exposure of photons to chemically processed or digitized devices known as cameras.

The word comes from the Greek words φως phos (“light”) and γραφις graphis (“stylus,” “brush”) or γραφη graphê, which also means “drawing with light” or “representation with lines” or “drawing. ” Traditionally, the work of photography has been called photography. The term photo is an acronym; many people also refer to them as photographs. In digital photography, the term “image” began to replace photography. (The term image is traditional in geometric optics.)