Re: Bromo-iodide Silver Gelatin Emulsion as an Alternative process

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From: Ryuji Suzuki (rs@silvergrain.org)
Date: 07/25/03-12:41:09 AM Z


From: martinm <martinm@SoftHome.net>
Subject: Re: Bromo-iodide Silver Gelatin Emulsion as an Alternative process
Date: Fri, 25 Jul 2003 08:07:52 +0200

> Orthochrome T is 1,1'-diethyl-6.6'-dimethylisocyanine.

Nice job!

> A more advanced solution would be choosing pinacyanol chloride (red) and
> 1,1 -diethyl -2,2 cyanine iodide (green). Have a look at
> http://cabd0.tripod.com/holograms/id3.html
> Since those two dyes cannot be used at the same time, this would imply the
> making of two different silver halide solutions, one for each dye.Prior to
> coating they would be mixed together...

I can't look it up now, but I remember Baker's book described a that
dye (along with Orthochrome T) with suggested doses in terms of a per
cent fraction of AgBr (was it something like 0.05%?). (definitely not
meant to be a recipe.)

--
Ryuji Suzuki
"Reality has always had too many heads." (Bob Dylan, Cold Irons Bound, 1997)

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