Wednesday, September 15, 2010
11:07 AM James Manuel 3 comments
To develop his method further, in 1829, Niepce entered a partnership with a dynamic entrepreneur named Louis Daguerre. In the years following Niepce’s death in 1833, Daguerre made some important progress. He used silver iodide as a coating on copper plates. This proved to be more light sensitive than bitumen. By accident he found that when he treated the plate with mercury fumes after exposure, a latent picture appeared clearly. This reduced the exposure time dramatically. When Daguerre later discovered that washing the plate with a salt solution prevented the picture from darkening over time, photography was ready to take the world by storm.