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DPX and Cineon footage showed its log code values as stored, with no way to convert them. Interpret Footage now has the Cineon Settings that After Effects' help page describes: Logarithmic Conversion, the Converted Black and White Points, the 10 Bit Black and White Points, Current Gamma, Highlight Rolloff and Units. With Logarithmic Conversion on, the code values of each decoded frame are converted from printing density to the Current Gamma between the converted points, before Separate Fields, Frame Blending, Interpret As Linear Light and the working space use them. With it off (the default), the values stay as stored. file.interpretFootage and file.interpretProxy take the settings as parameters and report them. They return an error for out-of-range values, and for Cineon parameters when none of the items is a DPX or Cineon file. Apply Interpretation copies the settings between DPX and Cineon files.