Still Picture Processes and Formats
Activities of the 29th Regiment Engineers, A.E.F. Dry Plate Room. Local Identifier: 111-SC-73342. Series National Archives Identifier: 530707.
The holdings of the Still Picture Branch consist of a wide variety of photographic processes and formats from the 19th century up through more recent born-digital photographs. The most prominent processes in our holdings are gelatin silver developing out prints and gelatin silver film negatives, followed by color chromogenic prints, negatives, and transparences. That said, our holdings consist of a substantial number of early photographic processes from the 19th and early 20th centuries, including daguerreotypes, tintypes, ambrotypes, wet-collodion glass plates, gelatin dry plates, albumen prints, gelatin silver printing out prints, collodion silver printing out prints, matte collodion prints, platinum/palladium prints, and cyanotypes. Photographic prints can be found in different print formats such as stereographs, cartes-de-visite, and cabinet cards.
The following pages describe some of the processes and formats in our holdings and provide links to online content.
