Van Dyke

Refers to the early photographic process resulting in rich, dark brown tones as well as the prints themselves. In this process, paper is coated with a solution of silver nitrate and ferric salts, placed in direct contact with a large negative between a board and a sheet of glass and set in the sun to develop. The process was so named due to the similarity of the print color to that of a brown oil paint named for Flemish painter Van Dyck. Also known as Kallintype.