====== Farmer's Reducer (Kodak R4b) ====== Proportional: for overdeveloped film ===== Preparations ===== Prepare stock solutions as described below: **Part A** |Water, | 500 ml | |Potassium Ferricyanide, | 7.5 gr | |Water, | to make 1000 ml | **Part B** |Water, | 500ml | |Sodiumthiosulphate (Hypo), | 200 gr | |Water, | to make 1000 ml| ===== Instructions for use ===== Use parts A and B separately. Immerse a wet negative in Part A for 1-4 mins, agitating gently. Watch the action carefully and remove the negative as soon as the desired density is achieved. Then immerse in Part B for 5 mins, remove and wash thoroughly.This process may be repeated as required. ===== Notes ===== For general fogging, dilute Part A with 50\% water. Both solutions have a long shelf life and can be stored for future use.