Photography is a digital or chemical technique of recording scenes from the reality on the layer of material that is sensitive to the light that falls on it. The word photography was first used by Sir John Herschel, 1839. Primitive track light system was used by the ancient Egyptians in the time of the pharaohsLong and arduous journey of developing photos, camera mechanics, optics, chemical processes electronic and computer technology as it is now known. Light is the basis of photographs. It is well known that under the influence of light in the film emulsion of silver changes, and that, after being processed film in chemicals, it gets a result of these changes, the visible image. While the chemical changes in the emulsion in a reasonable relation to the amount of light that fell on the movie: a small amount of light cause a slight chemical changes, and significantly higher amounts. Thus a photograph. When we talk about light in photography is different natural light coming from the sun or moon (day and night) and artificially as the result of a variety of lighting fixtures (of matches to light). Furthermore it can be built to distinguish light (when using flash or a reflector of light fixtures or situations) and found, and is also called ambient, existing. It is the light that we find ourselves in the place of recording, either natural or artificial character. Pictures with them becomes more pronounced. It must be remembered reflexes within the lens body, which sometimes interfere, acting as a fault, and sometimes a special charm on some recordings. This feature, rather the ability and feature lighting, refers not only to the objects, but also capture such portraits. Then it looks like a blurred gray surfaces, or "washed" white in case any chance overexposed photos.