Re: VDB toning with sulfide toner?

From: Stane Kocar ^lt;[email protected]>
Date: 10/04/05-12:44:22 AM Z
Message-id: <008b01c5c8af$0f76e7d0$0400a8c0@xxx3973844ccd4>

Ryuji, thanks for the prompt answer.

But if I use more diluted polysulfide toner (I will try it today) it works
even faster than more concentrated one on ordinary enlarging paper
(according to Tim Rudman's Toning book).
I will also try toning before fixing, but I expect it will not work (too
much bleaching).
Have you any recipe to try enlarging the grain?
I have only article on Unblinking eye about physical development. Maybe some
further reading?

Regards
Stane Kocar

----- Original Message -----
From: "Ryuji Suzuki" <rs@silvergrain.org>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Monday, October 03, 2005 3:30 PM
Subject: Re: VDB toning with sulfide toner?

> From: Stane Kocar <stane.kocar@siol.net>
> Subject: VDB toning with sulfide toner?
> Date: Mon, 03 Oct 2005 12:10:23 +0200
>
>> I tried post toning VDB prints with viradon (old version -
>> polysulfide+selenium) 1+20. Bleaching of the image was serious (at
>> least two stops), tone changes from chocholate brown to yellow-brown
>> - similar to as with KRST - I find it not very attractive. I
>> wonder, why so much bleaching? Does anyone tried that and has any
>> explanation?
>
> Ummm... One thing I can think of is that the shape of silver particles
> is changed by the toner and the same amount of silver compound gives
> less optical density. Also, silver sulfide has different optical
> property from metallic silver.
>
>> I would like to make VDB prints more permanent (I know - gold or
>> platinum toner works).
>
> With VDB the sulfiding toners may react very fast. You might want to
> use adjust the dilution. But it's possible that the problem persists
> to some degree.
>
> Another possibility is to enlarge the grains before toning. This can
> be done with a physical developer (silver intensifier).
>
>
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Received on Tue Oct 4 00:47:51 2005

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