[pure-silver] Re: Multigrade 1:9 developer vs Dektol 1:2
- From: Eric Nelson <emanmb@xxxxxxxxx>
- To: "pure-silver@xxxxxxxxxxxxx" <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 22 Feb 2012 17:37:00 -0800 (PST)
I did a little more research and found that at the next dilution listed, which
is 1:14, the development needs to be increased as expected, as well as the
capacity is diminished. Perhaps a false economy indeed, but along those same
lines, I do get good blacks in Ansco 115 diluted 1:5 but developed for 2-2.5
mins. Certainly as black as needed anyway! :) So perhaps for RC prints, which
is a relatively quick development, 1:14 would be fine but there won't be much
more of that done here anyway.
Thanks Richard.
e
________________________________
From: Richard Knoppow <dickburk@xxxxxxxxxxxxx>
To: pure-silver@xxxxxxxxxxxxx
Sent: Wednesday, February 22, 2012 6:52 PM
Subject: [pure-silver] Re: Multigrade 1:9 developer vs Dektol 1:2
----- Original Message ----- From: "Eric Nelson" <emanmb@xxxxxxxxx>
To: "pure silver" <pure-silver@xxxxxxxxxxxxx>
Sent: Wednesday, February 22, 2012 3:00 PM
Subject: [pure-silver] Multigrade 1:9 developer vs Dektol 1:2
Stopped into Calumet yesterday to get some fixer, developer and paper and there
was no Kodak chemistry at all. 0
So looking at alternatives I ended up w/Ilford's Multigrade developer which is
according to the label diluted 1:9. I'm wondering what folks' experiences are
w/this developer diluted further as I'm hoping to stretch it's use till I move.
1:9 is fairly energetic and results are fine w/Multigrade paper as one might
expect.
Eric
This might be false economy. The capacity of the developer and its
resistance to aerial oxidation become less as it is diluted. You may also have
problems obtaining good blacks. Since paper is developed to "completion", that
is, to its maximum density and contrast, the strength of the developer mainly
affects the developing time but it can also affect the maximum density
somewhat. Probably Multigrade at 1:9 is of similar activity to Dektol at 1:2
but even Dektol can benefit from being diluted _less_ as Richard Henry
indicates in his book when he mentions that he had by error been diluting it
1:1 and when he discovered that and switched to 1:2 found he got better results
from the stronger solution.
I am not sure but think Multigrade is similar to a liquid version of
Bromophen, which in turn is a Phenidone version of Dektol, yielding somewhat
more neutral color (not olive green) on many papers.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx
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