Daguerreotype process
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Iodine in Daguerreotypy
Daguerreotypy is a very old form of photography that is now nearly extinct. It involves immersing a photograph in solutions of iodine ions and bromine ions. The first dip in the iodine gives that painting a straw color, the bromine deepens it to an orange-brown, and the second iodine dip produces a color close to purple. The picture on the right is an example of daguerreotypy.
If you would like to know more about daguerreotypy, go to
www.daguerre.org
The above text taken from here
Daguerreotypy is a very old form of photography that is now nearly extinct. It involves immersing a photograph in solutions of iodine ions and bromine ions. The first dip in the iodine gives that painting a straw color, the bromine deepens it to an orange-brown, and the second iodine dip produces a color close to purple. The picture on the right is an example of daguerreotypy.
If you would like to know more about daguerreotypy, go to
www.daguerre.org
The above text taken from here
Yeap that's quite a concise description of the daguerreotype process...one of the first forms of commericalized photography, when it was made public on 1839. Images were formed on polished metal plates, which made them non-copyable. The images were actually negative images on the plate, formed by the action of light-sensitive silver iodide coated on the metal surface. It had to be viewed at a certain angle to see a proper positive image, which was one of the downsides of daguerreotypes. This was overcomed by another photographic process invented at the same period as the daguerreotype, which was the calotype, which made negatives images on paper, and from there contact prints could be made, as many copys as desired.
However, the daguerreotype had an edge over the calotype as the pictures produced were very sharp and crisp compared to the calotype, as the fibres in on the paper made the image soft and sometimes fuzzy. Daguerreotypes were more sought after however by the general public as its sharpness was excellent to make portraits. The process was also relatively fast (10-30 seconds exposure time and 30 minutes to develop the daguerreotype) and also cheap.
That's all i got from the top of my head, if you're interested in reading up more on Daguerreotypy or the old process of photography, do drop me a msg and i can lead u to some resources, and yeah, if any of you know anyone who actually does any form of the 19th century photographic process like the daguerreotype, pls do let me know, thanks.
However, the daguerreotype had an edge over the calotype as the pictures produced were very sharp and crisp compared to the calotype, as the fibres in on the paper made the image soft and sometimes fuzzy. Daguerreotypes were more sought after however by the general public as its sharpness was excellent to make portraits. The process was also relatively fast (10-30 seconds exposure time and 30 minutes to develop the daguerreotype) and also cheap.
That's all i got from the top of my head, if you're interested in reading up more on Daguerreotypy or the old process of photography, do drop me a msg and i can lead u to some resources, and yeah, if any of you know anyone who actually does any form of the 19th century photographic process like the daguerreotype, pls do let me know, thanks.
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