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Johann Baptist Isenring

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Johann Baptist Isenring (1796 - 1860) was a Swiss painter, printmaker and daguerreotypist. In 1840 or 1841 he produced the first coloured daguerreotype using a mixture of gum arabic and pigments. The coloured powder was fixed on the delicate surface of the daguerreotype by the application of heat. The result was one of the earliest examples of hand-colouring in photography.

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