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The Daguerreotype was a type of camera developed by Louis-Jacques-Mandé Daguerre in the early 1800's. It could produce an image on a piece of metal with an exposure time of only 20 minutes, a significant improvement from the 8 hour exposure time required by previous methods. The invention was purchased by the French government and announced in 1839. The Calotype invented by William Henry Talbot, which produces a negative image allowing images to be reproduced endlessly, replaced the Daguerreotype a year later.

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13y ago

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