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wiki:darkroom:chemistry:formulas:farmers_print [2022/01/20 14:48] – [Table] henpewiki:darkroom:chemistry:formulas:farmers_print [2022/05/01 12:01] (current) henpe
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-====== Farmer's Reducer ====== +====== Farmer's Reducer (full print bleaching) ====== 
-For bleaching och full prints.+For bleaching of full prints.
  
 Increases contrast and clears highlights Increases contrast and clears highlights
Line 17: Line 17:
  
 <WRAP myRecipe> <WRAP myRecipe>
-**Part A**+**Part B**
 |                             | x1      | x2      | x4      | |                             | x1      | x2      | x4      |
 | Sodium Thiosulphate (Hypo)  | 30 gr   | 60 gr   | 120 gr  | | Sodium Thiosulphate (Hypo)  | 30 gr   | 60 gr   | 120 gr  |
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 ===== Instructions for use ===== ===== Instructions for use =====
 Immerse the wet print in a tray of working solution. Don't agitate, agitation tend to cause an uneven result with more bleach on print edges. Treat for approx 5-10 sec. Thereafter, rinse the print in running water and evaluate. Repeat if necessary. When satisfactory, fix and wash the print as normally. Immerse the wet print in a tray of working solution. Don't agitate, agitation tend to cause an uneven result with more bleach on print edges. Treat for approx 5-10 sec. Thereafter, rinse the print in running water and evaluate. Repeat if necessary. When satisfactory, fix and wash the print as normally.
 +
 +A strong and rapid bleach is better for increasing (local) contrast. A weaker and more slowly working bleach is better for overall print reduction.
  
  
 ===== Notes ===== ===== Notes =====
-(none)+This recipe is from Darkroom Cookbook[(biblio:Anchell2008)], Formula #173.  
 + 
 +It is not clear (to me) why the KBr is needed. Most other recipes does nor contain KBr. Internet forums suggests solution A contain KBr since it can then also be used as a rehalogenating bath in a toning process?
  
  
wiki/darkroom/chemistry/formulas/farmers_print.1642686480.txt.gz · Last modified: 2022/01/20 14:48 by henpe

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