Formula 81 provides a single-solution developer of excellent keeping quality for the development of Reprolith Film. Hot Water (125F or 52C) 750 ml Hydroquinone 35 g Sodium Sulfite, anhydrous 55 g Sodium Carbonate, monohydrated 80 g Citric Acid 5.5 g Potassium Bromide 10 g Water to make 1 L Do not dilute for [...]
Photo Formulas & Techniques
This is a standard formula recommended for development of Reprolith and Reprolith Ortho Films. Water (Not over 90F or 32C) 2 L Sodium Sulfite, anhydrous 120 g Paraformaldehyde 30 g Potassium Metabisulfite 10.5 g Boric Acid Crystals 30 g Hydroquinone 90 g Potassium Bromide 6 g Water to make 4 L Dissolve chemicals [...]
This clean-working formula is recommended for use with commercial films in reproduction work when a comparatively low maximum denisty is desired. It is also suitable for development of roll, pack and sheet film providing a long scale of tonal gradation. Hot Water (125F or 52C) 800 ml Sodium Sulfite, anhydrous 125 g Potassium Carbonate [...]
This developer is recommended for Process film used in reproduction work. Solution 1 Hot Water (125F or 52C) 750 ml Hydroquinone 25 g Potassium Metabisulfite 25 g Potassium Bromide 25 g Water to make 1 L Solution 2 Cold Water 1 L Sodium Hydroxide (Caustic Soda Flakes)* 56 g *Sodium Hydroxide may [...]
This is a clean-working developer of particular value for rapid development or development at high temperatures. Hot Water (125F or 52C) 750 ml Metol 2.5 g Sodium Sulfite, anhydrous 25 g Hydroquinone 6.5 g Sodium Carbonate, monohydrated 16 g Potassium Bromide 1 g Water to make 1 L Do not dilute for use. [...]
This developer is recommended for use with commercial film to produce negatives of normal contrast. It may also be used satisfactorily for roll, pack and sheet film for negatives of average brilliance. Hot Water (125F or 52C) 750 ml Metol 1 g Sodium Sulfite, anhydrous 15 g Hydroquinone 2 g Sodium Carbonate, monohydrated 15 [...]
This formula is recommended for photofinishing, professional, and amateur film development and is suitable for deep tank use over a long period of time. Hot Water (125F or 52C) 750 ml Metol 2 g Sodium Sulfite, anhydrous 40 g Hydroquinone 1.5 g Sodium Metaborate 10 g Potassium Bromide 0.5 g Water to make 1 [...]
This procedure has been devised by the Ansco Research Laboratory to meet the requirements of those who must carry out finishing operations on exposed films in the shortest possible time. The two-solution method outlined below is intended primarily for sheet films used in news photography, and with favorable drying conditions will permit completion of developing, [...]
