Response to Old b&w film

It surelly depends on which film you have in your hands. Anyway, you will need a high contrast developer with an anti fog agent, since film tends to loose contrast and get foged as it ages. If i'm not wrong, you're looking for something containing hydroquinone, sodium sulphite and sodium carbonate. Surelly something else, but I don't know. You might also need to use reducer or intensifier after developement, since you won't get a very predictable result, due to the old age.

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