Apple Final Cut Pro 5 - Manual (Page 328)

Chapter 23 Using Color Bars for Video Calibration 327
IV
4 To display the ideal targets for color bars, Control-click in the Waveform Monitor or the
Vectorscope and choose Targets from the shortcut menu.
5 Adjust video brightness and contrast using the Waveform Monitor for reference.
Different third-party video interfaces have different controls for adjusting the video
signal being captured.
 If your video interface uses Brightness and Contrast sliders:
 Adjust the Brightness slider so that all of the bars in the Waveform Monitor are set
near the upper purple targets in the background.
 Adjust the Contrast slider so that the tops of the bars and the bottoms in the
Waveform Monitor are within the boundaries of the top and bottom targets.
 Continue adjusting the Brightness and Contrast sliders until there is an acceptable
range of brightness between the 100 and 0 percent targets.
 If your interface uses the Black Level and White Level sliders:
 Adjust the Black Level slider so that the third bar from the left is at the 0 percent
target toward the bottom of the Waveform Monitor.
 Adjust the White Level slider so that the second bar from the left is at the
100 percent target at the top of the Waveform Monitor.
Choose Targets from
the shortcut menu.