Abstract
IN NATURE, vol. x. p. 29, the article on the coming Transit of Venus makes mention of photographic irradiation as having “been found by Lord Lindsay and Mr. A. C. Ranyard to be mainly due to the reflection of light from the back of the glass plate. It can be almost entirely avoided,” Mr. Forbes goes on to say, “by wetting the back of the plate and placing black paper against it.” This subject has been investigated, explained, and the above remedy suggested years ago by practical photographers. In 1867 I used the plates of the Liverpool Dry Plate Company, then sent out with the backs painted red to prevent irradiation.
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STILLMAN, W. Photographic Irradiation. Nature 10, 63 (1874). https://doi.org/10.1038/010063b0
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DOI: https://doi.org/10.1038/010063b0
