Photography is the art, application, and practice of creating images by recording light, either
electronically
by means
of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is
employed in
many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct
uses
for art,
film and video production, recreational purposes, hobby, and mass communication.[1]
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. With an electronic image sensor, this produces an
electrical
charge at
each pixel, which is electronically processed and stored in a digital image file for subsequent display or
processing.
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