Johnson, George Lindsay, 1853- · London : G. Routledge · leaf 84
CHAPTER IV § 24. The Sensitiveness of the Photographic Plate as compared with the Eye to different Parts of the Spectrum In order to demonstrate the effect of different colours of the spectrum on a sensitive plate, we may draw a Violet. I?lue. Yellow. Green. Red. … Fig. 8. curve on squared paper in which the height of the curve (ordinate) represents the intensity of the light, while
Color photography
Internet Archive · Gerstein - University of Toronto · Public domain (published before 1931). Free to use for anything.
