Post by Steaphany on Jul 20, 2013 12:44:14 GMT
From the Amateur Photographic Science Page:
Prepare:
Ansco 90
to
add and dissolve
then add
This developer has been particularly designed for use with COMMERCIAL FILMS to produce negatives of brilliant contrast.
Do not dilute for use. Normal development time, 4 to 6 minutes at 20ºC.
Prepare:
Ansco 90
to
| Warm Water ( ~50ºC ) | CAS # 7732-18-5 | 750 ml |
add and dissolve
| Kodak Elon ( P-Methylaminophenol Sulfate ) | CAS # 55-55-0 | 5.0 grams |
| Sodium Sulfite ( Anhydrous ) | CAS # 7757-83-7 | 40.0 grams |
| Hydroquinone | CAS # 123-31-9 | 6.0 grams |
| Sodium Carbonate (Monohydrated) | CAS # 5968-11-6 | 40.0 grams |
| Potassium Bromide ( Anhydrous ) | CAS # 7758-02-3 | 3.0 grams |
then add
| Cold Water ( ~20ºC ) | CAS # 7732-18-5 | to make 1,000 ml |
This developer has been particularly designed for use with COMMERCIAL FILMS to produce negatives of brilliant contrast.
Do not dilute for use. Normal development time, 4 to 6 minutes at 20ºC.