Re: Question about pt/pd

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From: Jeff (fitzjon@comcast.net)
Date: 12/10/02-04:18:45 PM Z


Developer type, developer temperature and paper choice also are variables
that influence image color. I've enjoyed some deep, plum reds and some very
delicate yellows.

jeff johnson

------

> From: Sandy King <sanking@clemson.edu>
> Reply-To: alt-photo-process-l@sask.usask.ca
> Date: Tue, 10 Dec 2002 16:25:21 -0500
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: Question about pt/pd
>
> Carl,
>
> Thanks for your reply. When Witho was here he showed me some of his
> split-toned work but I was not sure exactly how he achieved the
> color. When terms like cesium and lithium are used I no longer
> understand if this is in the pt/pd, or represents some other variant.
> What I did gather from Witho was that the use of these other metals
> requires an extremely delicate balance in the mixture.
>
> Is there a good write-up anywhere about these alternate possibilites
> with pt/pd?
>
> Sandy
>
>
>
>
>> Sandy,
>>
>> Gold can be included in the sensitizer (replacing some of the Pt/Pd drops)
>> and will indeed move the print color toward purples and split tones, either
>> with develop-out or POP methods. With POP, gold and other additives can
>> also shift color. Witho Worms has done some really interesting experiments
>> with split-toned results from POP-palladium prints. Pt/Pd prints can also be
>> gold toned after standard processing, again changing tone and color with
>> purples and various splits possible.---Carl
>> --
>> web site with picture galleries
>> and workshop information at:
>>
>> http://home.earthlink.net/~cweese/
>>
>> ----------
>>> From: Sandy King <sanking@clemson.edu>
>>> To: alt-photo-process-l@sask.usask.ca
>>> Subject: Question about pt/pd
>>> Date: Tue, Dec 10, 2002, 3:47 PM
>>>
>>
>>> This is a question for the pt/pd folks.
>>>
>>> I was writing something about the characteristics of different
>>> processes and when I got to pt/pd it crossed my mind that I might
>>> better verify my information. I have always assumed that with pt/pd
>>> one is pretty much stuck with neutral black to warm black color,
>>> depending on the mixture of platinum to palladium. Is this true, or
>>> can the image color of pt/pd be changed? Could a pt/pd print, for
>>> example, be toned with gold to produce the purplish/bluish color we
>>> get with gold-toned silver processes?
>>>
>>> Sandy King
>>>
>


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