Keep the used developer in a separate bottle.
Rodinal Developer.
Use repeatedly, adding fresh as required.
Bromo-hydrochinon Developer.
| I.— | Distilled or ice water | 25 ounces |
|---|---|---|
| Sulphite of soda, crystals | 3 ounces | |
| Hydrochinon | 1/2 ounce | |
| Bromide of potassium | 1/4 ounce | |
| Dissolve by warming, and let cool before use. | ||
| II.— | Water | 25 ounces |
| Carbonate of soda, crystals | 6 ounces | |
Mix Nos. I and II, equal parts, for use.
Eikonogen Hydrochinon Developer.—
| I.— | Distilled or pure well water | 32 ounces |
|---|---|---|
| Sodium sulphite, crystals | 4 ounces | |
| Eikonogen | 240 grains | |
| Hydrochinon | 60 grains | |
| II.— | Water | 32 ounces |
| Carbonate of potash | 4 ounces | |
| To develop, take | ||
| No. I. | 2 ounces | |
| No. II. | 1 ounce | |
| †Water | 1 ounce | |
† For double-coated plates use 5 ounces of water.
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