A photographic process introduced by Frederick Scott Archer in 1851. A glass plate is coated with collodion, made light-sensitive in silver nitrate, exposed and developed while still wet, all within a few minutes. See also collodion process.
It produced glass negatives with fine detail and much shorter exposures than earlier processes. The same chemistry was used for ambrotypes and tintypes. It dominated photography until the gelatin dry plate in the 1870s and 1880s, and is still practiced by some artists today.
