The wet plate camera, also known as the wet collodion process, was an early photographic technique invented by Englishman Frederick Scott Archer in 1851. The process involved adding a soluble iodide to collodion- or cellulose nitrate- and coating a glass plate with the mixture. After being submerged in a silver iodine solution in a dark room it was then exposed in the camera and developed by pouring pyrogallic acid over it and fixed using a strong solution of sodium thiosulfate. The process was valued for the level of clarity and detail it produced. …show more content…
After coming across a formula for dry-plate emulsion in a British article, he generated a gelatine-based paper film as well as a device used to coat dry plates. The dry plate camera involved glass plates that were coated with a gelatine emulsion of silver bromide. It could be stored until exposure, afterwards being brought back to a dark room for development at will. These qualities were greatly preferred over the wet plate process. The dry plate however could be factory produced and was introduced in 1871 by R.L Maddox- though it was overtaken by celluloid film early in the 20th