[pure-silver] Re: ID-11 development times.
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Thu, 13 Sep 2007 14:06:23 -0700
----- Original Message -----
From: "Shannon Stoney" <shannonstoney@xxxxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Thursday, September 13, 2007 11:17 AM
Subject: [pure-silver] ID-11 development times.
I got some ID-11 yesterday and mixed it today. I was
looking at the recommended times for developing film on
the inside of the box, and it says to develop HP5+ for 13
minutes in 1+1 solution! In DDX, the recommendation is
only nine minutes. I add some time to this because my
tests show that my paper scale is 1.2 and longer
development is needed, at least in DDX. If I add about
the same percentage of time to the ID-11 time that Ilford
gives, that would be almost 16 minutes! I'm wondering if
such long development might negate any reduction in grain.
--shannon
I shouldn't. I am not sure what contrast Ilford
standardized on for its development times. Kodak times are
based on diffusion printing and somewhat less time can be
given (along with somewhat greater exposure) if one uses a
condenser enlarger. I think Ilford uses a compromise value.
In any case, if the time is too long you can use full
strength developer and cut the time by about 30 percent. The
full strength developer in theory should yield slightly
finer grain but my experience with D-76 is that its not
detectable in practice.
If this is a new combination I would try a test roll
before doing anything important.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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