arkins@banet.net
Sat, 19 Jun 1999 15:49:10 -0400
Dear Gordon:
Since you are interested in stand development, I thought you might find the
following of interest;
I have an old German formulary with a chapter for "standentwicklung" and
"planliege" development (i.e., stand development. (Sporl & Weiszacker,
Fotografisches Rezeptbuch, Halle, Knapp Verlag, 1941).
The formulas recommended are:
Hauff's Stand-entwickler
Sodium sulfite (crystalline) 1.5 g
Glycin 1.5 g
Sodium carbonate (cryst.) 25 g
Water to make 1000 ml.
Develop for 30 to 60 m. at 18 deg Centigrade.
Also, a pyrocatechin developer is recommended
Solution A
Sodium sulfite (desiccated) 40g
Pyrocatechin 20g
Water to make 1000ml
Solution B
Potash (potassium carbonate) 120 g
Water to make 1000ml
Working solution 40 cc A plus 40 cc B in 400 cc of water.
Develop 15 to 20 minutes at 18 degrees Centigrade.
(These times might have to be adjusted downwards for modern thin
emulsions.)
Generally, agitation with standentwicklung should be kept to a minimum after
the first minute (once every 3-4 minutes). The buildup of free bromide in
the highlight areas (which restrains development in those areas and
consequently reduces contrast) is enhanced by this limited agitation.
Because stain inducing developers will stain unevenly with this type of
agitation, it is critical that the developer for standentwicklung be a
clean-working one -- glycin being the locus classicus for this
characteristic. (I imagine that the pyrocatechin in the above formula
qualifies because of the large amount of sulfite in the formula, which
inhibits stain formation with pyrocatechin).
Thought you might enjoy experimenting with these choice old potions.
Joe Arkins,
Long Island City, NY
-----Original Message-----
From: Inis Glas Productions <inisglas@seanet.com>
To: alt-photo-process-l@sask.usask.ca <alt-photo-process-l@sask.usask.ca>
Date: Friday, June 18, 1999 5:19 PM
Subject: RE: contrast with stand development of Forte
Hi Folks:
I am doing stand development of my sheet film in a tank, using HÜbl paste
1:70 for 75 mins. at 68f. Having just switched from a no-name asa 125 film
to Forte 200 4x5, I was hoping that fans of stand development for alt.
processes could offer some advice.
HÜbl is an all glycin developer, so I allow for the one stop loss of speed
in exchange for the nice gradation that I get. I have been exposing EI 125
films at EI 60, and TriX at EI 125 to get fairly good negatives for
cyanotype and vdb. My negatives are even, with one problem I believe is
related to my Elkay tank.
With Forte 200, I am getting very thin negatives at an EI of 80.
I am shooting in the Seattle watersheds. Typical metered exposures at EI 80
are about 2 seconds at f32, even on cloudless summer days, due to the cedars
and pines.
Aside from lowering my shutter speed to over three seconds in a typical
shot, what are my options?
Can I boost the developer concentration and still use it as a stand
developer?
Second question: I am using an old Elkay tank. Even after cleaning it with a
strong peppermint soap and edta, I am noticing an oily residue on the tank
that seems to sometimes get onto the negatives. Can I remove this, or do I
need to find a new tank?
Thanks,
Gordon Cooper
Seattle, WA
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