History of Imaging

Two of the photo processes: Tintype and the photogenic drawing are the different types of photo processes. The tintype was first described by Adolphe-Alexandre Martin in France in 1853. The tintype is a photograph made by making a direct positive film on a sheet of metal coated with dark paint or enamel and using it as a carrier for photographic emulsions. The photogenic drawing was invented by William Henry Fox Talbot. This photo process needs to prepare by soaking it in a weak standard salt solution, drying it, scrubbing it with silver nitrate solution, and then further cleaning it in a strong standard salt solution. Exposure is usually through contact printing, as long as there is an image.


Most interesting one: The photo process that the most interested me is photogenic drawing. After I search and know about this photo process, I think that is an amazing process. When I see some pictures that use in the photogenic drawing, I think those pictures are the great achievements. Although this photo process would need a lot of materials and have many steps, I think the more photographic materials and steps, the more better pictures. And I esteem all the photographers to photograph each picture so perfectly that it can be presented to people.