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Popular Photographic Print Processes: Ambrotypes
Dates in general use: ca. 1851-1865
Description: A direct-image photograph commonly associated with the daguerreotype, because it was often made in a similar size, and kept in a case. The ambrotype is essentially an underexposed or "thin" collodion glass negative with a sheet of dark material placed behind it. This causes the negative to appear as a positive image. Compared to the daguerreotype, it is a duller, less contrasty image. Unlike the daguerreotype, the image does not have a mirror-like surface. The ambrotype was less expensive to make than a daguerreotype. Further information and examples
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