A dictionary of photography for the amateur and professional photographer (1889)
Wall, E. J. (Edward John), 1860-1928 · New York : E. & H.T. Anthony · leaf 194
y sensitive surface ; and the yellow and red rays having but little effect on a sensitive film, it is obvious that these colours in a landscape or picture have but tittle effect in forming the latent image, and therefore show as black in the finished print ; but as these rays are the most visible,… … Fig. 4. A, the lens, in fig. 3 a non-achromatic, in fig. 4 an achromatic or corrected lens; a ray of white light, being in fig. 3 decom- posed, the most visual rays or yellow being refracted to Y, the violet or actinic rays being refracted to v in fig. 3 ; by the use of the second lens, b, fig. 4,…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
