Robert Hunt, British photography pioneer, mid-19th century.
© Science Museum / Science & Society Picture Library
Hunt (1807-1887) was a geologist and a keen photographer and was a founder of the (Royal) Photographic Society. In September 1841, Hunt sent some calotype 'camera views, the results of 3 and 5 minutes' to Henry Fox Talbot (1800-1877). The calotype proces was the first negative-positive proces of photography, developed by Talbot and announced in 1839. The proces allowed any number of prints to be made from the same shot by transferring the negative on to special paper to make a positive print.