The term camera comes from the Latin word " Camera Obscura" meaning "darkroom" or "dark chamber". The first people to use this equipment were British scientists Thomas Wedgewood and Sir Humphry Davy. They used it to record photographic images. Certain chemicals were known to be light sensitive, such as silver nitrate and silver chloride. The first known people to produce photographic images were French physicist Joeseph Nice`phore Nie`pce and French painter Louis Jaques Mande` …showed first 75 words of 567 total…

…showed last 75 words of 567 total…and was used to produce motion pictures. Powdered magnesium was used to create an artificial light source. By sprinkling is in a trough and fired with a percussion cap it created a brilliant flash and an acrid smoke cloud. In 1947 American Physicist Edwin H. Land created the Polaroid camera. Two developments that have increased our ability to photograph very faint objects are an increase ISO of up to 5000 and an electronic device called light amplifiers.