Frederick Scott Archer's wet collodion process, announced in 1851, became the standard photographic negative process for both amateurs and professionals from the mid-1850s until the early 1880s.
<Context ref.>Interior of the Tuncum, Madurai, India (1868) by Edmund David Lyon - the Jerwood photography [En línia]. [Consulta: 7 juliol 2005]. Disponible a: <http://www.bl.uk/jerwood/jerwoodphoto5.html>