Apple Color 1.5 - Manual (Page 121)

Media Information and DPX/Cineon Header Metadata
When you click a shot to select it, an enlarged thumbnail appears to the right of the list
of media.
Underneath the thumbnail, information appears about the shot, including its name,
duration, resolution, frame rate, and timecode. If it’s an image sequence, its white point,
black point, and transfer mode metadata also appear. Depending on the type of media,
one or two buttons may appear at the bottom of the file browser.
Fix Headers Button
If the selected shot (or shots) is an image sequence, the Fix Headers button appears.
Clicking it opens the DPX Header Settings window, which lets you change the transfer
mode (Linear or Logarithmic), the Low Reference (black point) and High Reference (white
point), of DPX and Cineon image sequences that may have incorrect data in the headers.
Change the parameters to the necessary settings and click Fix to rewrite this header data
in all of the currently selected shots.
121 Chapter 5 Configuring the Setup Room