Photography (derived from the Greek photos- for "light" and -graphos for "drawing") is that the art, science, and apply of making sturdy pictures by recording light-weight or different radiation, either with chemicals by suggests that of a photosensitive material like photographic material, or electronically by suggests that of a picture sensing element. generally, a lens is employed to focus the sunshine mirrored or emitted from objects into a true image on the photosensitive surface within a camera throughout a regular exposure. The lead to Associate in Nursing ikon sensing element is Associate in Nursing electrical charge at every pel, that is electronically processed and hold on in an exceedingly digital image file for ensuant show or process.
The lead to a coat is Associate in Nursing invisible latent image, that is later with chemicals developed into an apparent image, either negative or positive looking on the aim of the photographic paper and therefore the technique of process. A negative image on film is historically accustomed photographically produce a positive image on a paper base, referred to as a print, either by mistreatment Associate in Nursing photographic equipment or by contact printing.
Photography has several uses for business, science, producing (e.g. photolithography), art, recreational functions, and mass communication.