Niépce set up a device called a camera obscura, which captured and projected scenes illuminated by sunlight, and trained it on the view outside his studio window in eastern France. The scene was cast on a treated pewter plate that, after many hours, retained a crude copy of the buildings and rooftops outside. The result was the first known permanent photograph.
View From The Window At Le Gras, Joseph Nicéphore Niépce, 1826
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