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The ambrotype (from Ancient Greek: ἀνβροτός — “immortal”, and τύπος — “impression”) or amphitype is a photograph that creates a positive image on a sheet of glass using the wet plate collodion process. In the United States, ambrotypes first came into use in the early 1850s. The wet plate collodion process was invented just a few years before that by Frederick Scott Archer, but ambrotypes used the plate image as a positive, instead of a negative.

Categories & Keywords
Category:Artistic
Subcategory:Black & White
Subcategory Detail:
Keywords:ambrotype, amphitype, argent, callotype, collodion, gelatine, nitrate, plate, wet