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The photography of coloured objects (1909)

Mees, C. E. Kenneth (Charles Edward Kenneth), 1882-1960, Newton, A. J · Croydon, Wratten & Wainwright · leaf 39

An illustration from The photography of coloured objects, 1909, leaf 39
The Wratten Panchromatic has of its total sensitiveness in the red, and consequently this red screen will, on that plate, be a 16 times screen. Eet us now examine into the multiplying factor of the screen which will give correct reproduction of red, green, and blue, as seen by the eye. We have… … Fig. 13 we have chosen our units with that condition in mind. On the orthochromatic plate we have no red sensitiveness, but the nearest approximation to correct rendering that we are able to obtain will be given if the green and blue are of equal intensities, i.e. we require a sensitiveness in the…

Photography · Color photography

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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