From: martinm (martinm@SoftHome.net)
Date: 06/06/02-10:37:32 AM Z
Actually, Cyanine/Chinoline red (Lippmann), Erythrosine/Cyanine (Valenta),
Isocol/Erythrosine/Pinacyanol (Ives) appear to have been used for spectral
sensitization of Lippmann photographs..
Regarding Chlorophyll, Neuhauss writes in his journal he had inserted mashed
ivy leaves in alcohol. After a couple of hours, he filtered the solution. He
also points out Chlorophyll lowered sensitivity in the violet and blue part
of the spectrum.
Martin
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