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Cyanotype / CuSO4 - ZnSO4 toning

Cyanotype / CuSO4 - ZnSO4 toning

REF #17
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Ferric Ammonium Citrate [NH4]{y}[Fe{x}(C6H4O7)] sol. 20%
1
Potassium Ferricyanid K3[Fe(CN)6] sol. 8%
1
Zinc sulfate ZnSO4.7H2O sol. 2%
Copper sulfate CuSO4 sol. 2%
365nm

Operating procedure

1. Faire un cyanotype de base (5 min), avec 2min de rinçage, ne pas sécher
2. Bain de CuSO4 pendant 2min
3. Laver 30+30s
4. Bain de ZnSO4 pendant 2min
5. Laver 30+30+30s