Abstract
THE well-known 'Wellcome' Exposure Calculator, Handbook and Diary, published by Burroughs Wellcome and Co., has appeared in a modified form as the 'Wellcome' Photographic Year Book. The contents are similar, and those who made use of the original publication before the War will remember that it consists essentially of a diary, a number of pages ruled for recording the essentials of photographic exposures, a fund of useful photographic information, and a very useful exposure calculator. Used in conjunction with the illustrated examples of different types of subject, the calculator is one of the best of its kind. On the back of the exposure calculator, also in disk form, is a depth of field calculator with which the depth of field can be obtained for lenses of various apertures and focal lengths. The keen photographer will find the Year Book a valuable asset for the pocket.
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'Wellcome' Photographic Year Book. Nature 159, 397 (1947). https://doi.org/10.1038/159397a0
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DOI: https://doi.org/10.1038/159397a0