The optics of photography and photographic lenses (1904)
Taylor, J. Traill (John Traill), 1827-1895, Everitt, P. F · London ; New York : Whittaker & Co. · leaf 65
in front. What, it might be inquired, would be the result if the objective were turned round so as to allow the light to pass through the lens before it reached the diaphragm ? Simply this : that the nature of the dis- tortion would be changed. There would be an expansion of the scale at the margin… … distortion, now recognised as the antithesis to the ‘ barrel ’ distortion already described. The nature and cause of distortion having been explained with all the fulness required in a popular disquisition like the present, we now come to speak of the various methods adopted for effecting its cure.…
Photographic optics · Photographic lenses
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