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The Wet collodion process was introduced. It provided the basis for a negative-positive print-making process.

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In 1841 he introduced the paper-based calotype process.

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Niepce died in 1833. Daguerre discovered that an invisibly  faint 'latent' image created by a much shorter exposure could be chemically "developed" into a visible image.

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In 1826 Niepce used a coating of bitumen of judea to make the first permanent photograph.

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In 1829 Daguerre partnered with Niepce and evolved the process which was known as the Daguerre type (which went public in 1839).

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This was taken in 1820 by Nicephore Niepce, but several days of exposure in the camera were required and the earliest results were very crude.

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The first documented attempt was by Thomas Wedgewood in 1800, however it failed.

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A darkened box with a convex lens or aperture for projecting the image of an external object on to a screen inside, a forerunner of the modern camera.