Display - Optoma HD8600 User Manual

User Controls
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Format
Use this function to choose your desired aspect ratio.
4:3: This format is for 4x3 input sources.

16:9: This format is for 16x9 input sources, like HDTV and DVD

enhanced for Widescreen TV.
LBX: This format is for non-16x9, letterbox source and for users

who use external anamorphic 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 displayed 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 anamorphic 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
vertical resolution are fully utilized.

Display