RE: Dumb question about Van dyke toning

Oops it seams I misread your question. And I wrote the message in two parts
(around 15 minutes between each). Sorry for the dumb/contradictory answer :)
Please disregard the last sentence in my message.

I think the need for fixing is due to the fact that not all the silver in
the image may be converted in the toner solution.

Regards,
Loris.

-----Original Message-----
From: Loris Medici [mailto:loris_medici@mynet.com]
Sent: 03 Nisan 2005 Pazar 22:08
To: 'alt-photo-process-l@sask.usask.ca'
Subject: RE: Dumb question about Van dyke toning

My procedure with gold toning is wash (developing), clear (in citric acid),
and then tone (in gold toner) and then fix. Toning with gold before fixing
cures the bleaching in fixer (because gold toned silver doesn't bleach).
Same applies to palladium or platinum toning AFAIK. But if you tone with
Selenium, then you should do it after fixing because it may stain the print.
I never heard of fixing after gold or pt/pd toning.

Regards,
Loris.

-----Original Message-----
From: nwlorax [mailto:nwlorax@comcast.net]
Sent: 03 Nisan 2005 Pazar 21:48
To: alt-photo-process-l@sask.usask.ca
Subject: Dumb question about Van dyke toning

All:

I'm reentering the exciting world of post-factory photography this
month, and had a question about van dyke toning.

If I understand it correctly, one tones the print after rinsing in an
acidic (?) water bath, then uses an acidic bath with a noble metal for
a number of minutes, then fixes the print and rinses it.

Why the fixing step? If palladium platinum or gold have replaced the
silver, is there a need to fix the print? Has anyone done tests on
this?

Thank you

Gordon Cooper
Received on Sun Apr 3 13:17:50 2005