Camera is one of the most popular inventions of the last centuries because it helps people keep memories alive on paper. Fistly,the light reflects off the object being photographed,then this light reflects off the object in all different directions and hits the lens from different angles. The lens focuses these rays of light to a point behind the focal point forming a real image so the film is placed at the point where the real image is projected to. The shutter temporarily moves from in front of the film and allows light to hit the film, then light hits the film causing chemical reactions which "expose" the film. Finally, the shutter closes and the film is advanced so an unexposed piece of film is ready for the next picture.
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