From: Manuel Gomes Teixeira (PunctumStudios@netc.pt)
Date: 09/01/01-03:42:57 AM Z
Sandy,
Thanks for your reply.
To be honest I didn't try this BPF with other developers beecause I was
interested in obtaining negatives that could be printed in both contact
methods Pt/Pd, Silver POP and with conventional VC paper for enlargements.
Nevertheless I was intending to use other developers than Pyro but after
reading your post I'm quite pessimistic about it.
Here in Portugal is impossible to find 5x7 sheet film from Kodak, Ilford or
Bergger. Tri-x, even abroad as U.K. (Silver Print) or Austria (Lotus View
Camera) it is not available . I suppose Kodak simply doesn't sell this size
in Europe .So the only alternatives I have is HP5 or Ortho+ that is quite
difficult to get.
I think that in a near future the only choice we will have in 5X7 will be
Bergger that will catch the abandoned customers from Kodak and Ilford, so is
is a pity that we can't make BPF to work.
Concerning HP5+ Carl Weese wrote in " The new Platinum Print":
The film retains its heavy fb+f and printing through this thick density can
result in some annoyingly long print exposures.
in conclusion: what alternatives can we have?
Greetings
Manuel Gomes Teixeira
Punctum Studios
Portugal
EU
> From: Sandy King <sanking@clemson.edu>
> Reply-To: alt-photo-process-l@sask.usask.ca
> Date: Thu, 30 Aug 2001 18:15:58 -0400
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: POP choices
>
>>
> Just as a curiosity, have you gotten enough contrast for POP with BPF
> and developers other than Pyro? My own experience with BPF is that it
> does not respond positively beyond a certain CI to increasing
> development times, period, irrespective of developer. There is
> something about this film that causes it to shut down when it reaches
> a certain CI, and prolonged development beyond this point does
> nothing but increase b+f.
>
> Sandy King
>
>
>
>
>
>
>> Hi Carl,
>>
>>
>> This topic of pyro developed negatives to use both with POP silver and Pt/Pd
>> is very interesting to me because I've concentrated myself on this two
>> methods for contact printing and discussions about this matter are
>> practically absent.
>>
>> I use BPF with Rollo Pyro from Lotus View Camera in Expert drums and the
>> results I got until this moment are not entirely satisfactory.
>> With normal developing times the contrast is simply not enough for POP and
>> I tried to give longer times but overall B+F+Stain increased to a level
>> that the exposure needed to UV is to long with the related problems.
>> I've tried as you recommend in "The New Platinum Print" : "strengthening
>> the developer and cut the developing time" but I didn't solve the above
>> described problem.
>>
>> Perhaps I'm missing something concerning pyro development.
>>
>>
>> greetings
>>
>> Manuel Gomes Teixeira
>>
>> Punctum Studios
>> Portugal
>> EU
>>
>>
>>> From: Carl Weese <cweese@earthlink.net>
>>> Organization: Carl Weese Associates
>>> Reply-To: cweese@earthlink.net
>>> Date: Thu, 30 Aug 2001 11:37:26 -0400
>>> To: Alt-photo-process <alt-photo-process-l@sask.usask.ca>
>>> Subject: POP choices
>>>
>>> James,
>>>
>>> Assuming you will have access to a darkroom for film development (4x5
>>> film in trays doesn't take much space): FP4+ in PMK pyro will give you
>>> negatives you can print in POP silver, and then later print in Pt/Pd or
>>> on standard variable contrast silver paper. Pretty good combination. It
>>> gives high acutance if that's what you're after. As for obtaining it in
>>> Japan, just take a couple dry packaged kits from ArtCraft Chemical with
>>> you. Each will make 50 liters of working solution which is enough for an
>>> enormous number of 4x5's. The mixed stock solutions have excellent shelf
>>> life. Tri-X/PMK is another good pair. TMX and HP5 are more trouble
>>> getting enough contrast for POP processes. Of course observe proper
>>> precautions for handling pyro which is more toxic than more ordinary
>>> developers.---Carl
>>> --
>>> Web Site with picture galleries and workshop information
>>> http://home.earthlink.net/~cweese/index.html
>
>
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