Classic aperture mode, Clean aperture mode – Apple Final Cut Express 4 User Manual
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Part XII
To change the aperture display mode of a QuickTime movie:
1
Make sure a QuickTime Pro registration code is entered in the Register tab of the
QuickTime pane in System Preferences.
2
Open a QuickTime movie in QuickTime Player.
3
Choose Window > Show Movie Properties.
4
In the Properties window, select the main movie track (not the video or sound tracks).
5
Click Presentation, then choose an aperture mode from the “Conform aperture to”
pop-up menu.
Classic Aperture Mode
In this mode, content appears as it did in QuickTime 7 and earlier. The video track
dimensions are respected. For example, a DV NTSC track appears as 720 x 480.
Clean Aperture Mode
An image’s clean aperture is a region of video free from transition artifacts caused by
the encoding of the signal. This is the region of video that should be displayed.
Classic: no pixel aspect
ratio correction or
aperture cropping
Edge encoding artifacts
Cropped edge
(in clean aperture mode)