calotype
/ˈkæləˌtaɪp/
noun
- An early photographic process invented in the 1840s that used paper coated with silver iodide to create a negative image, from which multiple positive prints could be made.
- Photography students studied the calotype process to understand the origins of modern film.
- William Henry Fox Talbot invented the calotype, which allowed photographers to make multiple copies of an image.
- The museum displayed a rare calotype of a Victorian street scene.