[pure-silver] Re: Sepia Toners
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Sun, 27 Jan 2008 17:27:24 -0800
----- Original Message -----
From: "Bogdan Karasek" <bkarasek@xxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Sunday, January 27, 2008 3:09 PM
Subject: [pure-silver] Re: Sepia Toners
Hello Richard,
Once again, Thanks for the added sepia toners and the
formulas.
As soon as I get the extra chemicals these toners require,
I'll give them a try.
Regards,
Bogdan
The term "sepia toner" seems to have been used for the
bleach and re-develop type, also called "indirect" toners.
There have always been recommended as suitable for neutral
and cold tone paper because they tend toward a yellowish
brown. Since the color of the original image has an effect
on the color resulting from toning direct toner, like
hypo-alum, may tend to produce too cold a brown on cold tone
papers and indirect types too yellow a tone on warm tone
paper. The relationship is not absolute and the developer
has a strong influence. Actually, "Sepia" is the name of a
color so, presumably, any toner which results in something
approximating this color is a "sepia" toner, although the
term seems to be confined to those which produce silver
sulfide.
I have many variations of direct toners. Most of these
are some version of the standard hypo-alum type but some
have added ingredients which probably affect the image
color. For instance, one toner, I think Defender, has
potassium iodide in addition to the bromide. I don't know
what effect this has but its probably worth experimenting
with.
There are at least two toners which have the addition of
some gold chloride. One is the well-known Nelson's Gold
Toner but another is a Haloid formula, essentially hypo-alum
but with some gold added.
Treating a print toned in any of the sulfiding sepia
toners with a gold toner will turn them some shade of red.
Gold toners, by themselves, produce a bluish color, the
vividness depending on the original image color, the warmer
the original image the more vivid the blue color.
There are other toners which produce brown or sepia
colors. For instance Copper toner but the image from copper,
like iron-blue toner, is not protected from oxidation as is
the image from any sulfiding toner. Nonetheless the colors
available from some of the more obscure toners may be useful
from an artistic standpoint provided one understands that
the images may not be permanent.
If anyone is interested in more toner formulas I will be
glad to post them.
I do think that hypo-alum or, especially Nelson's Gold
toner is worth experimenting with.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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