Apple Color 1.5 - Manual (Page 185)

• In dual-display mode: Up to three video scopes are displayed in the Scopes window, in
addition to the video preview.
The Accuracy of Color Video Scopes
To create a real-time analysis of the video signal (even during adjustment and playback),
Color downsamples the current image to a resolution of 384 x 192. The downsampled
image is then analyzed and the resulting data displayed by the currently selected scopes.
This same downsampled resolution is used regardless of the original resolution of the
source media.
Using this method, every pixel contributes to the final analysis of the image. In tests,
the graphs produced by the Color video scopes closely match those produced by
dedicated video scopes and are extremely useful as an aid to evaluating and matching
shots while you work in Color. However, you should be aware that the Color analysis is
still an approximation of the total data. Dedicated video scopes are still valuable for
critical evaluation.
Note: If you’re concerned about catching stray out-of-gamut pixels while you make
adjustments for QC purposes, you can turn on the Broadcast Safe settings to protect
yourself from QC violations. For more information, see
Broadcast Safe Settings .
Video Scope Options
You can modify the display and behavior of the video scopes in a number of ways.
To turn on real-time video scope updates
1 Open the User Prefs tab located inside the Setup room.
2 Select Update UI During Playback.
185 Chapter 8 Analyzing Signals Using the Video Scopes