Apple Final Cut Pro 5 - Manual (Page 1776)

Glossary 425
Linking button A button in the upper-right corner of the Timeline that turns the
linked selection option on and off.
Lock Track control The lock icon, near the beginning of tracks in the Timeline, that you
click to lock and unlock tracks. See locked track.
locked track A track whose contents cannot be moved or changed. In the Timeline, a
locked track is distinguished by cross-hatched lines across the track. You can lock or
unlock tracks at any time by clicking the Lock Track control in the Timeline.
log and capture In Final Cut Pro, the process of logging the clips you want to capture,
and then using device control to automatically capture them in the Log and Capture
window.
Log and Capture window In Final Cut Pro, the window used to enter information
about clips from source tapes, and to capture media files so you can edit them.
logging The process of entering detailed information about the clips that you want to
use from your source tapes, in preparation for capturing them from videotape.
logging bin In Final Cut Pro, the specified bin where all clips that are logged or
captured using the Log and Capture window are stored.
looping A playback mode in which clips and sequences go back to the beginning
whenever the playhead reaches the end of the media. The Loop Playback command is
in the View menu.
LTC Stands for longitudinal timecode. A method of writing timecode to a dedicated
timecode or audio track of an audio or video recorder. Compare with VITC.
luma Short for luminance. A value describing the brightness of a video image. A luma
channel is a grayscale image showing the range of brightness across the whole clip.
luma key A filter used to key out pixels of a certain luma value (or a range of luma
values), creating a matte based on the brightest or darkest area of an image. Keying
out luma values works best when your clip has a large discrepancy in exposure
between the areas that you want to key out and the foreground images you want to
preserve, such as a white title on a black background. See keying and matte.
luminance See luma.
markers In Final Cut Pro, points of reference in clips and sequences. Markers can be
placed directly in clips, or they can be placed in sequences in the Timeline ruler.
mask An image or clip used to define areas of transparency in another clip. Similar to
an alpha channel.