Re: POP gold toning was Re: To: alt-photo-process-l@sask.usask.ca

[Jeff Sumner <jdos2@mindspring.com>]

Thanks all for the information. I made too much toner for my original
purposes (I'd like to print negatives fairly soon after I make 'em) and I
did the entire litre following one of the many packet of instructions in the
"Tester Kit." Once made I noticed that the instructions in the bag that held
the 'a' and 'b' solutions recommended only making 1/2 as much... I was
hoping that I'd not have to throw so much chemistry down the drain. We'll
see, I suppose.

Experimentation is what this is all about, right?

JD
----- Original Message -----
From: "epona" <acolyta@napc.com>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Thursday, May 30, 2002 8:58 AM
Subject: POP gold toning was Re: To: alt-photo-process-l@sask.usask.ca


> Also, tinformation I received from Chicago Albumen Works states that you
can
> use old ammonium thiocyanate/gold toner to make a fresh batch the next
time you
> tone.  You substitute 450 ml in place of water.  They also state to *not*
> follow this practice for alkaline (borax) gold toners.  There is a
description
> of this in more detail on their web site, http://www.albumenworks.com.
>
> Cheers,
> Christine
>
> Shannon Stoney wrote:
>
> > > I've just started processing POP as a way of getting into alternative
> > > processing, the eventual goal is to be able to make daguerreotypes; my
> > > question- how long does the gold chloride/ammonium thiocyanate combo
last
> > > once mixed? I see that the two individually last at least as long as
the
> > > toner, but does the mixture decompose?
> >
> > My experience is that it doesn't last.  You make up enough for that
printing
> > session and then throw it away.  Also, you have to renew it by adding a
> > little more gold and ammonium thiocyanate after a few prints.  The paper
I
> > got had directions for how to do this.
> >
> > This is a problem for POP prints I think, as the gold toner is rather
> > expensive.
> >
> > --shannon
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> "The most beautiful thing we can experience is the mysterious.
> It is the source of all true art and science.  He to whom this
> emotion is a stranger, who can no longer pause to wonder and
> stand rapt in awe, is as good as dead; his eyes are closed."
> -Albert Einstein
>
>
>