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Correct dev. w/Pyro?



 
 
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  #1  
Old February 21st 04, 04:23 PM
lib
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Default Correct dev. w/Pyro?

I have been dev. HP5+ (120mm) in liquid Pyro from Photog. Form. What signs
should I look for in the neg's to see if they are 1] over-developed, or 2]
under-developed? I used the start times and processing rec's. in my "Book
of Pyro" to begin.


  #2  
Old February 21st 04, 06:23 PM
Patrick Gainer
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Default Correct dev. w/Pyro?



lib wrote:

I have been dev. HP5+ (120mm) in liquid Pyro from Photog. Form. What signs
should I look for in the neg's to see if they are 1] over-developed, or 2]
under-developed? I used the start times and processing rec's. in my "Book
of Pyro" to begin.

It's difficult to tell. Negatives may look undercooked but print well
because contrast "looks" higher to paper than to eye. This applies to VC
paper as well as to graded, but in the order eye VC graded. The best
way to find out what the paper sees is to show it the negative and see
how it responds. In less abstruse words, make a contact sheet. While
you're at it, if you use VC paper, try different contrast filters to see
how they change the response.
 




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