bitumen of judea photography

salas April 30, 2022 bitumen , of , photography , wallpaper Comment

The key material of Niépces process was Bitumen of Judea a naturally occurring type of asphalt. One of those photographs has survived.

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The bitumen slowly hardened in the brightest areas of the image.

. In the mid-1820s Niépce used a sliding wooden box camera made by Parisian opticians Charles and Vincent Chevalier to experiment with photography on surfaces thinly coated with Bitumen of Judea. He would cover either a piece of glass or metal with this Bitumen which would harden at a different rate depending on its exposure to. The unhardened bitumen was then dissolved away.

Heliography the worlds first known photographic process was invented by Nicéphore Niépce around 1824.

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