Talbot, who created the calotype, covered paper with silver chloride and put it in a camera. He exposed light to it, which created a kind of negative image. He then placed this negative on another sheet of paper to create a positive. On the other hand, Daguerre’s process had an image exposed directly onto a surface by using silver halide, bromine, and iodine and chlorine vapor. The surface of a metal plate reflects the image, and therefore cannot make copies of the image like a calotype could. Ultimately, one of the main differences is that daguerreotypes use mirror surfaces to create a negative that is then reflected into a positive looking image. On the other hand, a calotype is a negative that is later printed as a positive.
(Daguerreotype) Moreover, Daguerre had more money to do his research than Talbot did. Daguerre was funded by the French Academy of Sciences, while Talbot had to do his own private funding. Daguerre made sure it was free to use daguerretypes, while Talbot put a patent on calotypes to make some money. At first, daguerreotypes were more popular, however, Talbot’s calotypes were eventually used as a basis for further development of photography.
(calotype)-JAM
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