Once
upon a time... manufacturers of films and papers published many
processing formulµ for their products, we all remember Ilford's ID 20
or D72 from Kodak. This no longer seems to be done, perhaps because so
few people do their own processing this way, or perhaps because they
can make more money buy (oops - sorry) by selling branded ready made
products. They may, of course, have devised some fantastic new process
or material and need to protect their considerable investment. They
may... This set of formulµ from Agfa have been disentangled from the
web.
NEGATIVE
DEVELOPER - Agfa 8
Glycin,
Normal Contrast
Warm Water (125 @F or 52 @C)
- 750.0 ml
Sodium Sulphite, anhydrous
12.5 grams
Glycin
- 2.0 grams
Potassium Carbonate
- 25.0 grams
Add cold water to make
- 1.0
litre
Develop medium speed films from 10 to 12 minutes at 68 ¦F (20 ¦C)
FINE
GRAIN DEVELOPER - Agfa 14
Metol-Sulphite,
Soft Working
Warm Water (125 @F or 52 @C)
- 750.0 ml
Metol
- 4.5 grams
Sodium Sulphite, anhydrous
- 85.0 grams
Sodium Carbonate, monohydrated
- 1.2 grams
Potassium Bromide
- 0.5 grams
Add cold water to make
- 1.0
litre
Develop
from 10 to 20 minutes depending on type of film and contrast desired
TROPICAL
FINE GRAIN DEVELOPER - Agfa 16
Warm Water (125 @F or 52 @C)
-7 50.0 ml
Metol
- 6.0 grams
Sodium Sulphite, anhydrous
- 100.0 grams
Sodium Carbonate
- 12.0 grams
Potassium Bromide
- 3.0 grams
Then add slowly to avoid caking:
Sodium Sulphate, anhydrous
- 40.0 grams
Add cold water to make
-
1.0 litre
Developing times:
65 @F (18 @C)
- 9 to 11 minutes
75 @F (24 @C)
- 6 minutes
85 @F (29 @C)
- 3 minutes
HIGH CONTRAST DEVELOPER - Agfa 40
For
Films and Plates
Warm Water (125 @F or 52 @C)
- 750.0 ml
Metol
- l.5 grams
Sodium Sulphite, anhydrous
- 18.0 grams
Hydroquinone
- 2.5 grams
Potassium Carbonate
- 18.0 grams
Add cold water to make
- 1.0
litre
Development time 4 to 5 minutes.
PAPER
DEVELOPER - Agfa 100
For
Normal Contrast
Warm Water (125 @F or 52 @C)
- 750.0 ml
Metol
-
1.0 gram
Sodium Sulphite, anhydrous
- 13.0 grams
Hydroquinone
- 3.0 grams
Sodium Carbonate monohydrated
- 30.0 grams
Potassium Bromide
- 1.0
gram
Add cold water to make
- 1.0
litre
Use full strength; develop 1-2 minutes.
SOFT PAPER DEVELOPER - Agfa 105
For Low Contrast
Warm Water (125 @F or 52 @C)
- 750.0 ml
Metol
-
3.0 grams
Sodium Sulphite, anhydrous
- 15.0 grams
Potassium Carbonate
- 15.0 grams
Potassium Bromide
-
0.4 grams
Add cold water to make
-
1.0 litre
Use full strength; develop 1 + minutes.
HARD PAPER DEVELOPER - Agfa 108
For High Contrast
Warm Water (125 @F or 52 @C)
- 750.0 ml
Metol
-
5.0 grams
Sodium Sulphite, anhydrous
- 40.0 grams
Hydroquinone
-
6.0 grams
Potassium Carbonate
- 40.0 grams
Potassium Bromide
-
2.0 grams
Add cold water to make
-
1.0 litre
Use full strength; develop 1-2 minutes.
BROWN TONE PAPER DEVELOPER - Agfa 120
STOCK SOLUTION
Warm Water (125 F or 52 C)
- 750.0 ml
Sodium Sulphite, anhydros
- 60.0 grams
Hydroquinone
- 24.0 grams
Potassium Carbonate
- 80.0 grams
Add cold water to make
-
1.0 litre
This
developer will produce a variety of brown to warm black tones on various
papers depending on dilution and exposure time. The following table
lists the dilution and exposure for various tones on Agfa papers.
Development Conditions for Agfa Developer 120
Development
Paper Type: Brovira
Image Tone: warm black Exposure Time: normal* Dilution: 1:5
Development time @ 68 deg F (20 C): 4-5 minutes Paper Type: Portriga
Rapid
Image Tone: brown-black
Exposure Time: 1 + x longer than normal*
Dilution: 1:4
Development time @ 68 deg F (20 C): 3 minutes
*By normal exposure is to be understood the exposure required to produce
the best possible print
when developed for 1 + minutes in Agfa 100.
BROWN TONE DEVELOPER - Agfa 123
For Portrait papers
STOCK SOLUTION
Warm Water (125 F or 52 C)
- 750.0 ml
Sodium Sulphite, anhydrous
-
60.0 grams
Hydroquinone
-
24.0 grams
Potassium Carbonate
-
80.0 grams
Potassium Bromide
-
25.0 grams
Add cold water to make
- 1.0 litre
This developer produces tones ranging from brown black to olive brown on
Portriga Rapid paper depending on dilution and exposure. The table below
gives the typical development conditions for the various tones.
Development Conditions for Agfa Developer 123
Paper Type: Portriga Rapid
Image Tone: brown-black
Exposure Time: 2 + x longer than normal* Dilution: 1:1
Development time @ 68 deg F (20 C): 2 minutes Paper Type: Portriga Rapid
Image Tone: neutral to sepia brown
Exposure Time: 2 x longer than normal*
Dilution: 1:4
Development time @ 68 deg F (20 C): 5-6 minutes
*The term "normal exposure" means the exposure required to
produce the best possible print when developed for 1-1/2 minutes in Agfa
100. STOP BATH - Agfa 200
For Papers
Glacial Acetic Acid (99%)
-
20.0 ml
Cold water to make
- 1.0 litre
STOP BATH - Agfa 201
For Films
Potassium Metabisulphite
-
40.0 grams
Cold water to make
- 1.0 litre
ACID FIXING BATH - Agfa 300
Non-Hardening, for Papers
Warm Water (125 F or 52 C)
- 750.0 ml
Sodium Thiosulphate (Hypo)
- 200.0 grams
Potassium Metabisulphite
-
20.0 grams
Add cold water to make
- 1.0 litre
ACID HARDENING FIXING BATH - Agfa 302
For Films and Papers
Warm Water (125 F or 52 C)
- 750.0 ml
Sodium Thiosulphate (Hypo)
- 200.0 grams
Potassium Metabisulphite
-
20.0 grams
Potassium Alum
-
15.0 grams
Sodium Sulphite, anhydrous
- 7.5 grams
Glacial Acetic Acid 99%
-
12.0 ml
Add cold water to make
- 1.0 litre
RAPID FIXING BATH - Agfa 304
For Films and Plates
Warm Water (125 F or 52 C)
-
750.0 ml
Sodium Thiosulphate (Hypo)
-
200.0 grams
Ammonium Chloride
- 50.0 grams
Potassium Metabisulphite
- 20.0 grams
Add cold water to make
- 1.0 litre
HARDENING BATH - Agfa 400
Potassium Alum
-
100.0 grams
Cold water to make
- 1.0 litre
HARDENING BATH - Agfa 401
Formalin (40 % Formaldehyde)
-
120.0 ml
Add cold water to make
- 1.0 litre
HARDENER - Agfa 402
For Extreme Hardening
Water
-
500.0 ml
Alcohol
-
500.0 ml
Formalin (40% Formaldehyde)
-
120.0 ml
Immerse film or plate for from 5 to 10 minutes for maximum hardening.
Bromide - 0.4 grams
Add cold water to make - 1.0 litre
gives the typical Development Conditions for Agfa Developer 123
Paper
Type: Portriga RapidImage Tone