°C    °F 

 Film  Developer Dilution ASA/ISO  35mm  120  Sheet  Temp  Notes 
 Efke IR820  Nucleol BF200  2+1.5  4  12      20C  [4][59b] 
 Note [4]with Wratten #25 red filter
 Note [59b]Use distilled water, or tap water + 0.5% anhydrous sodium sulfite (5 g/l)

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