[pure-silver] Re: Hubl's book and panchromatic sensitivity
- From: Ray Rogers <earthsoda@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sat, 17 Oct 2009 14:31:31 -0700 (PDT)
Hi Richard!
Yes. If I am not mistaken, it may even have been in connection with collodion
plates that it was discovered. I have the details on my other computer, but
anyway it was Vogel who made the discovery, and yes there was color
sensitization going on and chlorophyll was one of the sensitizers.
Nice find. I have one or two of his books... how long is the one you picked up?
Ray
----------------------
--- On Sat, 10/17/09, Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
> From: Richard Knoppow <dickburk@xxxxxxxxxxxxx>
> Subject: [pure-silver] Hubl's book and panchromatic sensitivity
> To: "Pure-Silver Free" <pure-silver@xxxxxxxxxxxxx>
> Date: Saturday, October 17, 2009, 10:16 PM
> I just got a facsimile
> reproduction of a classic book on color photography. It is
> _Three Color Photography_ by von Hubl published by Kessinger
> (www.kessinger.net) This is a reprint of the English
> translation of the second edition (1904) originally
> published by Penrose in London. The first (German) edition
> was published in 1897. I have not done more than gloss over
> it but its obvious that Hubl uses panchromatic gelatin
> dry plates and has instructions for dye sensitizing them and
> also sensitizing wet plates. This is the first indication
> I've ever seen that Collodion wet plates could be color
> sensitized.
> In the past there has been some question in
> this group about when panchromatic sensitizing became
> available. This is at least a partial answer, panchromatic
> dry plates, or at least the means to make them were
> available in the late 19th century. Hubl mentions plates
> made by Lumier and Perutz. He discusses dye sensitzing of
> collodion "emulsion" made by Penrose Co. of London.
> I will post more when I've read more
> thoroughly. The facsimile is not very expensive and should
> be of interest to those who want some background on the
> development of color photography.
> Unfortunately, the color plates included
> in the original book are reproduced in monochrome and I
> suspect the entire thing is reduced in format from the
> original. Nonetheless IMO its worth having.
>
> --
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
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