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The ambrotype, also known as a collodion positive in the UK, is a positive photograph on glass made by a variant of the wet plate collodion process. Following the invention of daguerreotypes, cheaper than the French invention, ambrotypes came to replace them. Like a print on paper, it is viewed by reflected light.
Mar 4, 2024 · As finishing steps, ambrotypes, similar to daguerreotypes, were often hand-colored and put in decorative cases. Ambrotypes are distinguishable from daguerreotypes by the silvery, reflective quality of the latter’s image (Ritzenthaler, et.al, 34-35).
Ambrotypes are extensions of the wet collodion process invented by Frederick Scott Archer, in 1848. While Archer was the first to experiment with the technique, the American James Ambrose Cutting patented refinements of the process, in 1854, attaching his name to the process.
Apr 24, 2013 · Find out how to identify a collodion positive photograph (1850s–1880s), also known as an ambrotype, using just a few simple clues.
Ambrotypes are basically underexposed collodion* negatives on glass. The image materials appear white instead of black when viewed with transmitted light. When the glass plate is placed against a dark background, the positive image can be viewed.
Ambrotypes and Tintypes. The invention of wet collodion photography processes in the 1850s allowed the development of two new kinds of photographs--ambrotypes and tintypes. These new formats shared many characteristics with the earlier daguerreotypes but were quicker and cheaper to produce.
Ambrotypes were often produced using one-eighth of a wholeplate (6.25 ins x 8.5 ins) sheet of glass. This gave images about 3.125 x 2.125 ins). Many of the cases in which ambrotypes were mounted, Union Cases, were made of thermoplastic with ornate patterns moulded on them.
The American Antiquarian Society's photograph collection includes approximately one hundred and fifty ambrotypes. Ambrotypes became popular in the mid-1850s, and were much less expensive to produce than daguerreotypes .
Ambrotypes. A small ambrotype of Samuel Brown Wylie IV as a child, ca. 1860. Ambrotypes arose in the mid-1850s as a more economical alternative to daguerreotypes. Like daguerreotypes, they are a positive image that is typically housed within a protective case.
Mar 5, 2018 · Ambrotypes, derived from the Greek word for imperishable, were underexposed or bleached collodion negatives that, when viewed on dark backgrounds, appeared as positive images.
