ambrotype (wet collodion process)

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Scope note
A variant of the wet collodion process to produce a direct-positive camera original. The collodion is coated on glass, the image underexposed and then underdeveloped, the glass backed with black lacquer or black cloth, and the whole mounted in a case or frame. Occasionally, the image was made on ruby glass.
ambrotype
Accepted term: 10-Mar-2025