[pure-silver] Re: AW: Re: Any advice for purchase of densitometer.
- From: john stockdale <j.sto@xxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sat, 25 Dec 2004 09:31:10 +1000
At 08:14 AM 25/12/2004, Sandy wrote:
>One of the things that folks need to understand about negatives
>developed in pyro staining developers, however, is that for printing
>on VC papers the negative must be developed to a much higher contrast
>than if printing on graded silver papers. I have found, for example,
>that a PMK or Pyrocat-HD negative that will print well on a silver #2
>graded paper will need a #4 or perhaps even a #5 VC filter to print
>with the same effective contrast on VC papers.
This was Barry Thornton's criticism, i.e. for roll film sizes the increased
development produced sufficient grain to negate much of the benefit of
pyrogallol. He then formulated a pyrocatechol developer which he claimed
reduced this effect.
I'm wondering if my Zone VI 2-tube VC head is producing some UV, since i
don't find anywhere near this often quoted difference between graded and VC
paper. On the other hand, although my PMK negs looked distinctly
different to non-stained negs, they never looked as dramatically stained as
some examples I've seen on the net.
John Stockdale
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you subscribed,)
and unsubscribe from there.
Other related posts:
