Optoma TSFN-IR01 - Manual (Page 28)

User Controls
 LBX: This format is for non-16x9, letterbox source and for
users who use external 16x9 lens to display 2.35:1 aspect ratio
using full resolution.
Detail informations about LBX mode :
1. Some Letter-Box DVDs are not enhanced for 16x9 TVs. In
this situation, the image will not look right when dis-
played in 16:9 mode.
In this situation, please try to using the 4:3 mode to view
the DVD.
If the content is not 4:3, there will be black bars around the
image in 16:9 display. For this type of content, you can use
LBX mode to fill the image on the 16:9 display.
2. If you use an external 16x9 lens, this LBX mode also allows
you to watch a 2.35:1 content (include Anamorphic DVD
and HDTV film source) that support anamorphic wide is
enhanced for 16x9 Display in a wide 2.35:1 image.
In this case, there are no black bars. Lamp power and verti-
cal resolution are fully utilized.
Overscan
Overscan function removes the noise in a video image. Overscan
the image to remove video encoding noise on the edge of video
source.
Zoom
 Press the to reduce the size of an image.
 Press the to magnify an image on the projection screen.
H Image Shift
Shift the projected image position horizontally.
V Image Shift
Shift the projected image position vertically.
Keystone
Press the or to adjust image distortion vertically and make a
squarer image.
(*) Each I/O has differ-
ent setting of “Over-
scan”.
(*) “H Image shift” is
only supported on 4:3
and Native formats. If
source is 1080i/p, “H
image shift” is only
supported in 4:3.
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