collodion process
Victorian image-making method
The collodion process is a photographic technique from the mid-nineteenth century in which glass plates are coated with a solution of nitrocellulose, dipped in silver nitrate, exposed while still wet, and developed immediately.
It produced sharper images than earlier methods and dominated photography from the 1850s until dry plates replaced it.
The "wet plate" requirement meant photographers needed portable darkrooms for field work.
- collodionNitrocellulose in solvent
- wet plateLight-sensitive glass photography
- silver nitrateAgNO₃ crystalline salt
- nitrocelluloseAcid-treated cellulose compound
- portraitureArt of depicting people
camera obscura · Brady · Victorian portrait · landscape photography · iodine · bromine · platinum print · ether · tripod · cyanotype · alcohol · developer · darkroom · fixer · lens cap · varnish · exposure · exposure time
- photographycamera, photo, flash, lens, shooting
- silver halidessilver chloride, silver iodide