Understanding the Control Panel
26
LBOX/PBOX - Letterbox / Pillarbox
If the input aspect ratio is 16:9 and it is passed on to a 4:3 display, as in a down conversion, the LBOX/PBOX
aspect ratio will produce a Letterbox output, where the entire image appears vertically centered in the 4:3
display with bars at the top and bottom of the image.
If the input aspect ratio is 4:3 and the output aspect ratio is 16:9, as in an up conversion, the LBOX/PBOX
aspect ratio will produce a Pillarbox output, where the image appears horizontally centered in the 16:9
display with bars on the left and right sides of the image.
16:9 Ratio Image
(correct geometry)
4:3 Ratio Image
(shot with an
anamorphic lens)
4:3 Ratio Image
4:3 Ratio Image
(incorrect geometry)
Upconversion
Downconversion
16:9 Ratio Image
4:3 Ratio Display
(incorrect geometry)
16:9 Ratio Image
4:3 Ratio Display
