Photography is the art, science, and practice of creating durable images by recording light or other electromagnetic radiation,
either chemically by means of a light-sensitive material such as
photographic film, or electronically by means of an image sensor
Typically, a lens is used to focus the light reflected or emitted from
objects into a real image on the light-sensitive surface inside a camera
during a timed exposure. The result in an electronic image sensor is an
electrical charge at each pixel, which is electronically processed and
stored in a digital image file for subsequent display or processing.
The result in a photographic emulsion is an invisible latent image, which is later chemically developed into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.
The result in a photographic emulsion is an invisible latent image, which is later chemically developed into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.