Cantor lectures on recent advances in photography (1882)
Abney, William de Wiveleslie, Sir, 1843-1920, author, Society for the Encouragement of Arts, Manufactures, and Commerce (Great Britain) · London : Printed by William Trounce · leaf 32
he passage of those particular raj such a sensitometer with phosphorescent light, which act as extinguishing rays. There you must beware what you are about, and another very simple way, which I recommen hesitate before you draw any exact conclusions. to amateurs, of telling the amount of expose i… … whichever ti it agrees with; knowing the “light value of the tint, you know what is the intensi of the light, and, therefore, what to give to j plate. A simple rule to remember is this, th if you use a bromide plate, only use a bromii 1 I. Visual spectrum of phosphorescent light. paper for securing…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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