Re: Selenium Intensifier

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From: Witho Worms en Jorien van Santen (verzet13@xs4all.nl)
Date: 06/13/02-04:56:26 AM Z


Hello Judy,

Can you tell me how to make this chromium intensifier.

Is it possible to intensify Pyro or Pyrocat developed negatives by this
method ?

Witho

----- Original Message -----
From: "Judy Seigel" <jseigel@panix.com>
To: <alt-photo-process-l@skyway.usask.ca>
Sent: Thursday, June 13, 2002 3:19 AM
Subject: Re: Selenium Intensifier

>
>
> On Wed, 12 Jun 2002, Istvan Bibo wrote:
> > >
> > I used Ilford Selenium toner (IT-3) to boost negatives and the more
> > dilute solution (1:20 vs. 1:10?) resulted more added density.
>
>
> For what it's worth, I got significantly more intensification on lith film
> and Agfa n31p with chromium intensifier to start, followed by selenium
> toner. (Kodak doesn't sell chromium intensifier any more, but the formula
> is easy to make as long as you have potassium or ammonium dichromate.)
>
> The twice intensified film was not only notably denser by densitometer
> than either intensifier alone, it got quite a reddish tone, which I assume
> would have had a further actinic effect.
>
> Judy
>
>


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