Pyrocat-HD Developing times

Hi Delphine,

You can find Pyrocat-HD developing times for
several films, including FP4+ and BPF 200, at the
end of the article "An Introduction to Pyro
Staining Developers, at
http://unblinkingeye.com/Articles/PCat/pcat.html

This article was translated into French as
"Introduction aux révélateurs colorants au pyro"
and is in the French language site Galerie-Photo,
at
http://www.galerie-photo.com/revelateurs-colorants-au-pyro.html.

That data for FP4+ is very sound and his been
consistent with several different testings of
different emulsions. I can not say the same about
BPF 200, however, as my testing has given some
rather wide variations in results with different
emulsions of this film.

Let me know if you have any questions.

Sandy

>Sandy,
>
>I'm developping my film for a palladium process
>(Mike Ware's) but in fact I just need standard
>(universal) developping times. I explain me: I
>am a student at the Ecole Nationale Supérieure
>Louis Lumière (France) in photography and I want
>to study the effect of the stain with these
>films on a multigrade process. In fact my aim is
>to make dual purpose negatives but to assign the
>development in priority to the palladium process.
>I will have to test pushing and pulling
>development and that's why I only need standard
>times (to satisfy ISO Conditions, gamma = 0.8).
>I hope my english is understandable!
>
>Thanks for your answer
>
>Delphine
>
>>From: Sandy King <sanking@CLEMSON.EDU>
>>Reply-To: alt-photo-process-l@sask.usask.ca
>>To: alt-photo-process-l@sask.usask.ca
>>Subject: Re: Developping times
>>Date: Thu, 17 Feb 2005 08:24:58 -0500
>>
>>For what process are you developing your film?
>>
>>Sandy King
>>
>>
>>>Hi,
>>>
>>>Does anyone can recommend developping times
>>>for Bergger BPF 200 and Ilford FP-4+ in
>>>Pyrocat-HD (Photographers Formulary formula)?
>>>Thanks a lot
>>>
>>>Delphine Chapuis
Received on Thu Feb 17 10:09:33 2005