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  1. How to test for unknown film emulsion speed / ISO ?

    Started by catiecolvin, 28-May-2017 16:12
    2 Pages
    1 2
    determine, dry plate, emulsion, film speed, unknown
    • Replies: 10
    • Views: 6,471
    Last Post: 30-May-2017 04:20
    by jnantz  Go to last post
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