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Daguerreotype collectibles: during the first 25 years of the 19th
century, many people worked on the challenge of writing in light.
They prepared papers and plates with light-sensitive chemicals with
limited success. Although both a French artist and English amateur
inventor (William Fox Talbot) devised and publicized different methods
at the same time, it was the French artist, Louis Jacques Daguerre,
whose invention became more popular.
A successful commercial artist in Paris, Daguerre studied the
experiments of a countryman optician, who was using light to create
plates that could be inked and printed, resulting in accurate
reproductions of scenes. One of the experiments was made in 1826, a
view from a window that took 8 hours to expose, and is recognized as the
world's earliest existing photograph. The two men collaborated, but the
latter died in 1833, leaving Daguerre to carry on until success in 1837.
He treated a silver-plated copper sheet with iodine to make it sensitive
to light, exposed the plate in a camera, and developed the plate with
mercury vapor. He named the invention Daguerreotype. Unable to
sell his process by subscription, he soon found a supporter in the
Academy of Sciences. He was soon compensated by the government for his
invention for its contributions to the progress of art and science. August 19, 1839, the
invention was presented as a gift to the world from France, resulting in
an immediate international mania. Daguerre had little else to do with
the invention thereafter and died in 1851, with little else of
significance to his life.




