Louis Daguerre was an inland revenue officer and then became a scene painter for the opera. In 1822 in Paris he opened the Diorama which was an exhibition that showed pictorial views. In 1829 Louis Daguerre partnered with Niepce which began a cooperation which lasted until Niepce died. Louis Daguerre invented daguerreotype process of photography. Daguerre first exposed silver-coated copperplates to iodine which created silver iodine. Next he exposed them to light for several minutes, and then he coated the plate with mercury vapor that was heated. Finally he fixed the image in saltwater. The plate produced an exact reproduction of the scene. This process only took 20-30 minutes. Also, Daguerre's name is one of the 72 names that is inscribed on the Eiffel Tower.
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