Eikonogen and Hydrochinon Developer.
| A. | ||
|---|---|---|
| Metric Weight. | Avoirdupois Weight. | |
| 600 c.c.m | Distilled Water | 20 ounces |
| 120 grammes | Sulphite of Soda Crystals | 4 ounces |
| 22 grammes | Eikonogen | 330 grains |
| 10½ grammes | Hydrochinon | 160 grains |
| 960 c.c.m | Water to make up to | 32 ounces |
| B. | ||
| Metric Weight. | Avoirdupois Weight. | |
| 600 c.c.m | Distilled Water | 20 ounces |
| 60 grammes | Carbonate of Potash | 2 ounces |
| 60 grammes | Carbonate Soda Crystals | 2 ounces |
| 960 c.c.m | Water to make up to | 32 ounces |
For use take 1 ounce (30 c.c.) of A, ¾ ounce (25 c.c.) of B, with 4 ounces (120 c.c.) of water.
More of A will increase density, more of B will increase detail and softness. Temperature of developer should not vary much below 65 deg. nor above 75 deg. The after treatment is same as with any other developer.
Let the development continue until the blacks look quite strong, and detail showing in the high-lights; wash off developer, then immerse in