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Article: Ansco 120

  1. #1

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    Ansco 120

    Ansco 120 (USA) is a different formulation than Agfa 120 (German)

    Ansco 120 Soft Working Paper Developer
    Water (125 deg F)--------------------750 ml
    Metol---------------------------------12.3 grams
    Sodium Sulfite (Anhydrous)------------36.0 grams
    Sodium Carbonate (Anhydrous)--------36.0 grams
    Potassium Bromide (KBr)----------------1.8 grams
    Water to make-------------------------1.0 liter
    Note: For warmer tones, add more KBr

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    I have used Ansco 120 as bath #1 in conjuntion with Ansco 130 as bath #2, to control overall contrast. I found that Ansco 120 as published produces a cyanotype blue with low shadow separation. So, I tried adding additional KBr. I ended up adding 4 times the recommended amount to the stock solution above. Both developers are diluted 1:2.This change gave excellent results with Azo and the new Lodima #3 papers for contrasts between grade 2 and 3.

    Alan
    Last edited by Alan Davenport; 08-18-2010 at 06:30 PM. Click to view previous post history.



 

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