The history of prints

Photography is obtaining and retaining a static image on a photosensitive material with the camera discount. Depending on the operating principle of the sensitive material photo can be divided into three broad groups: film, digital and electro. Film photography is based on the photographs, which take place the photochemical processes. Picture based on the achievements of science especially in the field of optics, mechanics and chemistry. Development at this stage of digital photography is due mostly to the electronic and information technology. The operating principle of pictures based on image acquisition and fixing them with chemical and physical processes that are obtained with the aid of light, i.e. electromagnetic waves emitted directly or reflected. Images using reflected from the objects of the visible light received in ancient times and used for painting and technical work.

It is a large number of different structures and support mechanisms for obtaining images. The main unit is a camera and its accessories. Optical history of photography has about a thousand years. The first person who proved that light, not heat makes the silver salt is a dark, was Johann Heinrich Schulze. First fixed image was made in 1822, Frenchman Joseph Nicephore Niepce, but it has not survived to our days. Therefore, the first in the history of photography is a snapshot obtained Niepce in 1826 with a camera on a tin plate covered with a thin layer of asphalt. Color photograph appeared in the middle of the XIX century. To produce a color image using three cameras mounted with color filters. The invention and mass use of photographs, and in the future of cinema has changed the idea of historical events, recorded on tape, no less than the invention of writing.

Digital photography is a relatively young but popular technology that was born in 1981. The first camera was not digital in the modern sense (the disc was recorded on an analog signal), but eliminates the film. The first full-fledged digital camera was released in 1990. The principle of the digital camera is to fix the flux matrix and transforming this information into digital form. Currently, digital photography replaces film everywhere in most industries.