In a paper consisting of seven pages a calotype negative base is examined in terms of its popularity as a Daguerreotype alternative and its pencil correction advantages. Two visuals are included and there are five bibliographic sources cited.
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Daguerreotype and was more popular with amateur photographers, artists, and scientists, who used it widely, since the negative could be corrected with pencil. Bibliography lists 5 sources. BBclotpR.doc THE
CALOTYPE Written by B. Bryan Babcock for the Paperstore, Inc., November 2000 Introduction The Calotype, or "Talbotype, was a refinement of the process of photogenic drawing,
offering a much more sensitive medium because of its use of the latent image phenomenon. It was invented by Fox Talbot in September 1840 and patented on the 8th of
February, 1841. While it was never remotely competitive in the commercial sphere (although Talbot and Nicolaas Henneman (1813-1898) used it as the basis of their photographic business at Reading),
it was offered as the chief alternative to the Daguerreotype and was more popular and widely used with amateur photographers, artists, and scientists (http://www.mhs.ox. ac.uk/features/ephotos/ctypes.htm#ctypes). History As far as the
principle of the process, the photographic technique employed by Adamson and Hill known as the calotype (from the Greek word for beauty, kalos - (http://www.worcesterart.org/Collection/European/1966.50.html) was very similar
to that still in use today. A negative was exposed in the camera, developed in a dark room and then printed on sensitive paper. The cameras, while wooden and large,
are easy to relate to modern cameras. However, their sensitive materials were quite different from ours in one important aspect. Modern photographic film and paper are highly refined highly technological
products made under strict controls in a factory setting. In addition to the other problems they faced, Adamson and Hill had to make each and every sheet of negative or
print material by hand (http://special.lib .gla.ac.uk/hillandadamson/calo.html). There are no significant records of their particular working practices. However, we know they were in close touch with the arts inventor, William