Sunday, August 30, 2009

Wet Plate Collodion Process

The wet plate collodion process was popular during the mid-1800.  Most well know when used to make tintypes but the same process with slight variation was also used to make ambrotypes.  Ambrotypes were made on a glass base whereas tintypes were on metal plates but not tin.  The "Tintype" label was more from the tin-snips used to cut the metal plates.  As it is difficult to tell the difference between the two when they are in similar cases, as was the custom during that time period; remember a magnet will be attracted by a tintype photograph and not an ambrotype.

During June I attended a workshop in northern Michigan to further my understanding of the wet plate process.  I had two marvelous teachers; Bill Schwab and Joe Smigiel.  The ambrotype above, Pamela's Circle was made during this workshop.  “Pamela’s Circle c. 1740” is a quarter plate ambrotype on black glass.  It measures  3 ¼ x 4 ¼ inches and is still without a proper case.  This is now my favorite photograph because it was made in the 21st Century, using a process devised in the 19th Century with equipment from the early-mid 20th Century to photograph a book written in the 18th Century. One of the first English novels, Pamela or Virtue Rewarded by Samuel Richardson was first published in 1740 and is the story of a young woman, in servitude to the master of the house, who is also her tormentor.  She prizes her chastity, learns how to protect it and is rewarded by marrying the lord of the manor and in the final chapters learns her new role in society. Virtue rewarded.  The props in the photograph were carefully chosen to reflect the manners of Pamela’s social circle.


The picture accompanying my ambrotype is the set up I used in making the photograph and made with a digital camera.  I like how the juxtaposition of the two photographs shows how the ambrotype image is flipped; truly a negative image of the subject.  Both photograph were taken out of doors in natural light, filtered by tree leaves, late one afternoon.  My camera is a Kodak 5x7 wooden view camera.  The wetplate collodion process is familiar to most people as that used for tintypes.  In fact it is difficult to tell the difference between a tintype and an ambrotype when they are in cases and under glass. I use a magnet to identify a tintype as it will attract a magnet and the glass of the ambrotype will not. Ambrotypes are most often made on clear glass with a dark paper or black velvet placed behind and glass over the plate to protect it.  I will be writing about how to make an ambrotype in an upcoming edition of The Photogram.
“Pamela’s Circle c. 1740” also embodies for me the changing role of women from the rigid feminine roles of the 18th Century to the freedoms enjoyed and the roles played by women in society today.                                          
   
 Judith Harrison Kalter 2009