POWERHOUSE COLLECTION

Notes

In 1851 Frederick Scott Archer announced the discovery of a new photographic process that could adhere to glass. This was a major breakthrough in the story of photography for the process made clear highly detailed negatives form which multiple copies could be made. The general public had become used to their photographic portraits being taken using a daguerreotype process which were displayed in a small glass fronted case. To compete with this trade a special kind of collodion process, known as the ambrotype was introduced. This was essentially the same as other collodion negatives except that once the exposure had been taken the emulsion on the glass was bleached to whiten it. When this bleached negative was placed in a case against a black background it formed a positive image which bore a remarkable resemblance to the daguerreotype except it had the added advantage of not being highly reflective. Australia followed rather than set photographic trends but in the 1850s, the massive boom caused by the discovery of gold ensured it was very quick to take up new processes like the ambrotype. Over the 1850s the ambrotype replaced the daguerreotype as the preferred method of taking portraits but even in the late 1850s daguerreotypes were still being made for more conservative customers. Geoff Barker, Curatorial, September 2009 References J. Cato, The Story of the Camera in Australia, Third Edition, Institute of Australian Photography, Hong Kong, 1979 Michel Frizot, A New History of Photography, Amilcare Pizzi, Milan, 1998 Helmut and Alison Gernsheim, A Concise History of Photography, Thames and Hudson, Germany, 1965 A. Davies and P. Stanbury, 1985, The Mechanical Eye in Australia, Oxford University Press, Melbourne