From: Ken Paul Rosenthal (email suppressed)
Date: Fri Mar 24 2006 - 12:49:32 PST
here's an excellent D19/Bleach recipe (courtesy Robert Schaller) for
processing 7363. works like a charm. the recipe calls for either 1 liter or
2 gallons per step because i was processing 35 feet at a time in large tubs.
BE CAREFUL WHEN MIXING THE BLEACH!!! wear an apron, gloves that reach to
your elbows, a full face shield, with adequate ventilation, if not a face
filter for organic fumes.
finally, YOU MUST ADD THE SULFURIC ACID TO THE WATER, NOT(!!!) THE REVERSE,
because the latter method will explode.
my favorite place to purchase chemistry is Photographer's Formulary in
Montana. they have an '800' number. they will require you to FAX you a copy
of your driver's license in order to ship the acid.
good luck, and play safe (put a 'condom' over your head :-) ken
PROCESSING 7363 B&W HI-CON STOCK IN D-19
*Rinse film in water first to swell and open gelatin, absorb chemistry more
evenly,
like stretching before running
1) 1st Developer 68 degrees, 7 minutes
- Distilled Water (see D19 package for amount)
- D19 (2 packages makes 2 gallons)
- 2 grams per liter of Potassium Thiocynate (makes highlights clearer)
FRESH WASH 1 minute
2) Bleach (Dichromate) 1 minute
- 1 liter of Distilled Water (8 liters per gallon)
- 9 1/2 grams per liter of Potassium Dichromate (76 grams per 2
gallons)
- 12 milliliters of Concentrated Sulfuric Acid (96 milliliters per 2
gallons)
WASH 1 minute
CHANGE WATER
3) Clearing 1 minute
- 1 liter of Distilled Water (8 liters per gallon)
- 210 grams per liter of Sodium Sulfite (1,680 grams per 2 gallons)
WASH & RE-EXPOSE TO LIGHT 1 minute (to create latent image, instantaneous)
4) 2nd Developer Until Black (*without Potassium Thiocynate, dont use
1st Dev)
WASH 1 minute
5) Fix (Premixed) 3 minutes
6) Hypoclear 2 minutes (cuts down on wash time)
- Use Permawash brand
- 3 ounces per gallon (6 ounces per 2 gallons)
WASH 5 to 10 minutes
CHANGE WATER
7) Photoflow (a detergent with anti-spotting action)
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For info on FrameWorks, contact Pip Chodorov at <email suppressed>.