Ilford ID-1 Film Developer

Ilford ID-1 Film Developer

  1. Christopher Walrath

    Christopher Walrath Member

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    Christopher Walrath submitted a new resource:

    Ilford ID-1 Film Developer - Ilford ID-1 Film Developer

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    Last edited by a moderator: Feb 6, 2016
  2. Trask

    Trask Subscriber

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    Why would tray and tank development have such different proportions of stock A to stock B to water? One would almost think that the tank formula would have less stock B (accelerator) than stock A for trays. Just curious and I like to learn...
     
  3. Ian Grant

    Ian Grant Subscriber

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    Traditionally tray development requires shorter processing times, this is for convenience and also to minimise the risk of aerial fogging, and uneven staining. So this is why it's used with more alkali & bromide and slightly more concentrated.

    People using Pyrocat today un trays often use the 2+2+100 dilution rather tahn the 1+1+100 for similar reasons.

    The Metabisulphite needs to be added first to prevent oxidation of the Pyrogallol which decomposes rapidly in water without it. It's important to use reasonably fresh Metabisulphite as this increases the potential shlf life of Part A.

    The Ilford published formula uses 37.5g Sodium Carbonate (anhydrous)

    Ian
     
    Last edited by a moderator: May 11, 2010
  4. Christopher Walrath

    Christopher Walrath Member

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    Thank you, Ian.