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The history of photography' THE BIRTH OF PHOTOGRAPHY Photography was officially invented in 1839. This was the year when the existence of a photographic image was made public. Unbelievably, the first reference of cameras is recorded by Aristotle in the 4th century BC.

The camera obscura was basically a completely confined, dark room with a hole in one wall, by the effect of light diffraction, projected an image of the outside world on the opposite wall. It wan't until 1568 that Daniello Barbaro added a lens to the hole, enormously improving the sharpness of the image. In the mid-17th century the camera obscura became portable when it was shortened down to a box about 30 cm square. When a piece of paper was placed opposite the lens it was able to display landscape pictures on it. Everything was in place for photography, except the chemistry.

Camera Obscura - a Latin term meaning "dark room", or "dark chamber."

The first pictures It was known in the late 18th century that an image could be made on material soaked in silver nitrate, but there was no way of fixing an image until Sir John Herschel discovered sodium hyposulphitas, a fixing agent in 1819.

to be continued Unknown 23456789 (talk) 21:03, 4 April 2019 (UTC)Unknown 23456789