Apple Final Cut Pro 6 - Manual (Page 85)

84 Part II Learning About the Final Cut Pro Interface
 Fit All: This is similar to the Fit to Window command, but this command takes into
account clips whose borders extend beyond the current Viewer boundaries.
 Show as Sq. Pixels: Displays non-square pixel images as square pixels so they look
correct on your computer screen. Standard definition (SD) video equipment displays
video using non-square pixels, whereas computer monitors display video with square
pixels. Because of the difference in the shape of the pixels, the same video image
looks different on each kind of monitor. Final Cut Pro can simulate how your images
will look on a video monitor using the computer’s display, so that your video images
look correct as you edit. This does not permanently affect your picture; it’s only for
display purposes.
Note: When playing back media with the Viewer scaled to 100 percent, both fields of
interlaced video are displayed. If the Viewer is scaled to anything other than 100 percent
and you’re displaying a DV clip, only one field is shown during playback or while
scrubbing through the clip. When playing back media captured with a third-party video
interface, some interfaces display both fields regardless of the scale of the Viewer, which
may result in visible artifacts in the picture. These are display artifacts only, and do not
exist in the video signal output to tape.
Before After
Displaying native, non-square pixels Display pixel as square