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News of
Niepce’s work had reached another
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Frenchman,
Louis Jacques Mande Daguerre
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(1787-1851) who
had been experimenting to
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capture camera
obscura images
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In 1829 Niepce
and Daguerre became partners, a partnership
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which lasted
until Niepce’s death in 1833.
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Daguerre
perfected the process, reducing the exposure time
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from eight
hours to half an hour. He found that an image
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could be made
permanent by immersing it in salt.
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In 1839 he
announced the new process which he named
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“daguerreotype”
before the French Academy.
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