To:               infrared@a1.nl
Date sent:        Fri, 13 Feb 1998 06:48:18 -0700
From:             "Tom none Jarana" 
Subject:          IR fil developer
Organization:     MailCity  (http://www.mailcity.com)
Send reply to:    infrared@a1.nl

Here in the tropics temperature control becomes a problem.  Here is the solution:
Divided D-76.  No thermometer needed!  No timer needed!  No rigid temperature
control! A two part compensating developer for all black and white films, including
Infrared. Rolls or sheets of different speed films can all be developed together for
the same time and and all will be perfectly developed.  Scenes with a subject
brightness range as wide as 20 stops will compress down to a printable range during
development.  It tames fussy films like T-Max 100, and is pure magic with Konica
750/120.  . 

Formula: 

"Part - A" 
Distilled water                          750 ml 
Metol                                      2 grams                    
Sodium Sulfite (anhydrous)               100 grams 
Hydroquinone                               6 grams
Potassium Bromide                          1 gram 
Add distilled water to make 1 liter

"Part - B"
Distilled water                          750 ml
Borax (NOT Kodalk)                        45 grams  
(bi-borate 30 grams or tetra-borate 45 grams) 
Add distilled water to make                1 liter

Part "A" can be re-used indefinitly, part "B" will develop 4 rolls and does not
keep. 

Directions for use: Do not dilute.  
1. Soak films in "Part A" for 5 minutes, with non-violent agitation. 
2. Drain for 15 seconds. 
3. Soak  in "Part B", for 5 minutes, with GENTLE agitation. 
4. Plain water rinse 15 - 30 seconds. 
5. Fix for 5 minutes in a hardening fixer such as Kodak F-5, or Kodak F-6. 
6. Soak in "Kodak Hypo Clearing Agent" for 2 minutes with continous gentle agitation. 
7. Wash in running water 5 - 10 minutes. 

At temperatures above 80 degrees F, (yes you can!) use a non hardening fixer such as 
Kodak F-24, and reduce time to 4 minutes in "A" and 4 minutes in "B". Above 90F reduce 
time to 3 minutes.  Some films (Forte) can be developed at temps as high as 100F 
without damage.  All solutions including the wash (tap) water should be at the same 
temperature so as not to damage the emulsion by sudden expansion or contraction. 

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