From Wikipedia, the free encyclopedia.
A photograph (often just photo) is an image (or a representation of that on e.g. paper) created by collecting and focusing electromagnetic radiation. The most common photographs are those created of visible wavelengths, producing permanent records of what the human eye can see.
A photograph is taken using photographic film loaded into a traditional film camera or using a CCD or CMOS chip in a digital camera. Most traditional (analog) photographs are produced with a two-step process. In the two-step process, the film holds a negative image (colors and lights/darks are inverted), which is then transferred onto photographic paper as a positive image. Another widely used film is the positive film used for producing slides.
Different formats of film exists. Panorama sized images can be taken by using special cameras like the Hasselblad Xpan on standard film.