Photography describes a technology that records lasting images from real life by utilizing light or other electromagnetic radiation, either electronically or through an image sensor or chemically using a light-sensitive material. A camera is the tool used to capture and focus light reflected from objects into a replicate image on the light-sensitive surface inside the device (camera) during a timed period called "exposure". The result is an invisible image which is later chemically brought forth into a visible image or recorded on a digital card inserted in camera. Photography is often used to document a period, mood or moment. The immediacy of the camera's ability to capture images gives cause to the role of photography in art.
Contemporary art encompasses the art of today, produced by living artists. The art of today benefits from all the previous art movements in history as artists work in a wide array of mediums, formats, and styles, while transgressing art forms: music, architecture, video, performance art, living installations, technology.