Dell 3400MP Manuel Du Propriétaire page 13

Adjusting the Projector Zoom and Focus
CAUTION:
elevator foot are fully retracted before moving the projector or placing the
projector in its carrying case.
Rotate the zoom tab to zoom in and out.
1
Rotate the focus ring until the image is clear. The projector focuses at distances
2
from 4.9 ft to 39.4 ft (1.5 m to 12 m).
1
Zoom tab
2
Focus ring
To avoid damaging the projector, ensure that the zoom lens and
Using Your Projector 13