William Henry Fox Talbot Rachel, Lee, Shaun AND emma
William Henry Fox Talbot was born in Dorset on the 11th of February in 1800. He was a British scientist, inventor, MP and photography pioneer who invented the salted paper and calotype processes which were the precursors to photographic processes of the later 19th century.
Calotype or Talbotype Process
Calotype (talbotype) is an early photographic process invented in 1841 by William Henry Fox Talbot using paper coated with silver iodide.
Talbot made his first successful camera photographs in 1835 using paper sensitised with silver chloride, which darkened in proportion to its exposure to light. His method was a printing out process which meant that the paper he was using had to be exposed to the camera (for an hour or more) till the image was fully visible.
Talbot based his research on the daguerreotype process by Louis Daguerre. The calotype process produced a translucent original negative image from which multiple positives could be made by simple contact printing. This gave it an important advantage over the daguerreotype process, which produced an opaque original positive that could only be duplicated by copying it with a camera.