wet plate process

American  

noun

1. a photographic process, in common use in the mid-19th century, employing a glass photographic plate coated with iodized collodion and dipped in a silver nitrate solution immediately before use.

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Example Sentences

About 1855 successful Photographer Brady imported from Britain one Alexander Gardner, an expert in the wet plate process invented by Frederick Scott Archer, which used glass plates dipped in collodion, permitted almost instantaneous exposures.

From Time Magazine Archive

Here again the wet plate process, although more clumsy, demonstrated its superiority over the dry process used by other expeditions.

From Astronomy: The Science of the Heavenly Bodies by Todd, David Peck