Optoma HD66 User Manual page 30

User Controls
Rear-Desktop and

Rear-Ceiling are
to be used with a
translucent screen.
30
English
SETUP
Projection
Front-Desktop

This is the default selection. The image is projected straight on
the screen.
Rear-Desktop

When selected, the image will appear reversed.
Front-Ceiling

When selected, the image will turn upside down.
Rear-Ceiling

When selected, the image will appear reversed in upside down
position.