| Home | Photography Home | Formulae |


IT-8 Ilford Pyrocatechin Toner
For Olive Black tones.

Stock A    
Potassium Bichromate 50 g  
Water to 1 litre  
Stock B    
Hydrochloric Acid (conc) 100ml  
Water to 1 litre  
Expose and process your print as normal and wash well.  
Make up bleach from: 2 parts A and 10 parts B with 40 parts water, bleach the print then wash until all the yellow from the bichromate has been removed from the highlights then redevelop in the following Developer.
Pyrocatechin 1.75 g
Sodium Carbonate (anhyd) 15 g  
Water to 1 litre  

Temperature is not critical, it should take 1½ to 2 mins at 20°C, this developer will oxide very quickly and should be discarded when it turns a bluish green.
Wash the print and dry.

While originally fomulated for Ilford Plastika paper I first used this about 25 years ago with Iford Multigrade paper and it does produce lovely warm olive tones.

Print - Forte Polywarmtone FB, Developed in ID-78, right half toned in IT-8