Kirstie Mensen and Karlee Hull
What is Ambrotype?
Ambrotype- is when you create a positive image on a sheet of glass using a wet plate collodion process.
The ambrotype's life span was very short, wide-spread use was less than ten years, but produced a vast collection of beautiful images. While the name ambrotype was derived from the Greek word ambro, meaning imperishable, it was still a delicate, easily damaged photograph. One advantage it did possess over the silver daguerreotype was that it did not tarnish.
Who and how did they invent Ambrotype?
- James Ambrose Cutting invented the Ambrotype photography in 1851.
- The wet plate collodion process was invented just a few years before by Frederick Scott Archer and widely used for glass negatives, but in an ambrotype the collodion image is used as a positive, instead of a negative.When dry, the glass plate was then backed either with black paint, metal, cloth, or paper; this black backing made light areas of the negative appear darker, turning the negative image into a positive. Some ambrotypes were made with ruby or dark green glass to simulate the effect of a backing without using one. Ambrotypes often were hand-colored, most commonly with dabs of red paint on the cheeks of the sitter. They were housed in wood or thermoplastic cases.
How is this process important to the history of photogrphy?
Were there any famous photograpghers that used this type of photography?
what sources did we use?
We used alternativephotography.com, google.com, Wikipedia.com