William Henry Fox Talbot was a British scientist, inventor and photography pioneer who invented the calotype process — the first negative-positive photographic technique, which became the basis for almost all photographic processes used for the next 150 years.
Early Life
William Henry Fox Talbot was born on 11 February 1800 at Melbury, Dorset, England. He was educated at Harrow School and Trinity College, Cambridge, where he graduated in 1821 with honours in mathematics. He was elected a Fellow of the Royal Society in 1831.
The Invention of Photography
In 1833, while sketching at Lake Como in Italy, Talbot was frustrated by his inability to draw well. He began to imagine a device that could capture images automatically. In January 1839, just weeks after Daguerre announced his process in Paris, Talbot rushed to announce his own photographic method to the Royal Institution in London.
His process, which he called "photogenic drawing," used paper coated with silver chloride. Unlike the daguerreotype which produced a single positive image, Talbot's method created a paper negative from which multiple positive prints could be made — a fundamentally different and ultimately more influential approach.
The Calotype
In 1841 Talbot patented the calotype process, a significant improvement using paper coated with silver iodide. The calotype produced a paper negative from which many prints could be produced — establishing the negative-positive system that dominated photography for over a century and directly influenced the development of modern film photography.
The Pencil of Nature
In 1844 Talbot published "The Pencil of Nature" — the first commercially published book illustrated with photographs. It contained 24 photographic plates and was issued in fascicles between 1844 and 1846. The book demonstrated numerous possible uses of photography, from copying documents to recording works of art.
Later Life and Legacy
Beyond photography, Talbot made important contributions to mathematics, optics, and the decipherment of Assyrian cuneiform inscriptions. He died on 17 September 1877 at Lacock Abbey, Wiltshire, which had been his family home since 1827 and where he had conducted many of his early photographic experiments. Lacock Abbey is now owned by the National Trust and houses the Fox Talbot Museum of Photography.