Cupreatype
REF #55
2
1
Operating procedure
1. Mix copper citrate and ferricyanide in a 2:1 ratio.
2. Add as much water as the ferricyanide solution.
2. Spread onto the paper.
3. Leave to dry for 30 minutes.
4. Expose. (10 minutes)
5. Rinse with neutral water for 1 minute
Water eliminates the need for basic rinsing, improves whites but reduces dark tones
2. Add as much water as the ferricyanide solution.
2. Spread onto the paper.
3. Leave to dry for 30 minutes.
4. Expose. (10 minutes)
5. Rinse with neutral water for 1 minute
Water eliminates the need for basic rinsing, improves whites but reduces dark tones