Apple Final Cut Pro 7 - Manual (Page 1328)

• The signal from the proc amp is connected to a video monitor and then to a waveform
monitor, where you can measure to make sure the proc amp is adjusted for proper
black levels. For NTSC signals in North America, you should adjust the proc amp so that
the waveform monitor shows a black level of 7.5 IRE. For PAL and NTSC in Japan, the
output signal should be 0 IRE.
Computer Standard definition
monitor
Waveform monitor/
vectorscope
Proc amp DV VTR
Analog
video out Analog out
Analog video
through FireWire
Analog video out
to recording deck
Using Built-in Video Scopes During Capture
If you are capturing analog video footage using a third-party video interface, you can use
the Log and Capture video scopes to calibrate the video interface input settings to the
color bars at the beginning of each tape. Final Cut Pro saves individual image-control
settings with each clip you log. You can then have Final Cut Pro capture your offline clips
using these individually saved image-control settings.
Adjusting Capture Settings with the Log and Capture Video Scopes
The video scopes in the Log and Capture window include the Waveform Monitor and
the Vectorscope. If you are capturing to a Y
′
C
B
C
R
video format, the entire range of the
scope is displayed (from –10 percent to 109 percent). However, if you are capturing to
an RGB codec, the range is limited to 0 percent to 100 percent.
To use the built-in Log and Capture video scopes to adjust your clip settings
1 Make sure your video deck is connected to the video interface in your computer.
2 Cue the videotape to the color bars recorded at the beginning of the tape.
3 Choose File > Log and Capture, click the Clip Settings tab, then click the Video Scopes
button.
1328 Chapter 78 Measuring and Setting Video Levels