====== Farmer's Reducer (Kodak R4a) ======
Substractive bleach for overexposed or fogged film.

Substractive...

===== Preparations =====
Prepare stock solutions as described below:
<WRAP myRecipe>
**Part A**
|Water,                  | 300 ml  |
|Potassium Ferricyanide, | 37.5 gr |
|Water,                  | to make 500 ml |
</WRAP>

<WRAP myRecipe>
**Part B**
|Water,              | 1000ml         |
|Sodiumthiosulphate, | 480 gr         |
|Water,              | to make 2000 ml|
</WRAP>

Finally, prepare working solution as specified below:
<WRAP myRecipe>
**Working solution**
|Water,       | 850ml  |
|Part A,      | 30 ml  |
|Part B,      | 120 ml |
</WRAP>


===== Instructions for use =====
  - Soak the film in water.
  - Put the wet film in a tray of working solution, agitate carefully.
  - Inspect and remove film from tray as soon as density is sufficiently dense, or slightly before.
  - Apply a quick rinse in water to abort further bleaching. 
  - Inspect and repeat if needed.
  - 

=== For prints ===
Mix 10-14 parts of water with 1 part of A and 1 part of B.


===== Notes =====
For a weaker solution, keep proportion of part A and part B and dilute in more water.