[Alt-photo] Re: B&W toning of cyanotypes

[Keith Gerling]

Sumac?  I still have a bag of that from Istanbul that is pretty stale.  I
can use that for toning?


On Sun, May 19, 2013 at 6:04 AM, Serdar Bilici <sbilici at gmail.com> wrote:

> Hi Matti,
>
> I used vinegar (straigt and diluted) for trad. cyanotypes. It has no effect
> on the color imo. But citric acid definitely shifts the colors towards
> greener hues in both the traditional and the new cyanotype formula. Whether
> added into the sensitizer or used as the first acid wash.
>
> Regards
> Serdar
>
>
> -----Original Message-----
> From: alt-photo-process-list-bounces at lists.altphotolist.org
> [mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf
> Of
> Matti Koskinen
> Sent: 19 Mayıs 2013 Pazar 11:16
> To: alt-photo-process-list at lists.altphotolist.org
> Subject: [Alt-photo] Re: B&W toning of cyanotypes
>
> On 19.5.2013 8:04, raven erebus wrote:
> > Interesting.... I've tried very similar methods and didn't get those
> > results.
> > By washing soda do you mean calcium carbonate?
> > what brand of instant coffee? (it does seem to make a difference) And
> > what kind of paper did you use? (my experiments seem to vary greatly
> > depending on paper)
> >
> > Here's my example and instructions for a lovely sepia tone.
> > http://www.flickr.com/photos/violentbloom/8671043077
> >
> >
> Washing soda is Sodium Carbonate, not Calcium nor Bicarbonate used in
> baking. The coffee I used is the same  re-branded Deuctsche Kaffee-extrakt
> origin, as given in Caffenol Cookbook.  The paper is Daler-Rowney Aquarelle
> 300g/m2 Acid free cold pressed A3-pad, which I cut in two.
>
> I'm thinking that the acetic acid development has something really to do
> why
> the prints get this almost b&w tone. When I've tried toning only water
> development, I get brown tone and staining, as I have to tone much longer.
>
> I've tried green tea also, but never get the truly amazing tone of your
> print.
>
> thanks for sharing.
>
> -matti
>
>
> _______________________________________________
> Alt-photo-process-list | lists.altphotolist.org/mailman/listinfo
>
> _______________________________________________
> Alt-photo-process-list | lists.altphotolist.org/mailman/listinfo
>