Photograph is a real life image which is produced when light falls on a light sensitive surface such as a photographic film or an electronic imager like a CMOS chip or a CCD. Photographs are taken by a tool named camera.
The camera is equipped with a lens. The lens can be of varying zooming capacity. The more the zooming capacity of the lens, the more focused is your photograph subject. The lens basically reproduces your subject's visible wavelengths of light into an image on the photographic film.
In the earlier times the painters were appointed to paint the real life image of a person. But it took a great lot of time and it was in no way a reproduction of the real object. Gradually the photograph capturers replaced the painters in the art of reproducing a real life object. Though in underdeveloped countries, many people still rely on painters to make replicas because they are superstitious to think that capturing a photograph reduces the person's lifetime.
Photographs can be of digital type as well as non-digital type. Non-digital photograph demands a complicated processing. The image is first processed in a negative film which is later turned to a positive by transferring the negative image on a photographic paper. The coming of the microcomputer and digital photography has led to the popularity of digital prints. These prints are reproduced from stored graphic formats such as JPEG, TIFF, and RAW. The types of printers that are used for the print of digital photographs include dye-sublimation printer, inkjet printers, laser printers, and thermal printers.
