ViewSonic
PJ450D/PJ452D/PJ455D
15
Adjust the Zoom, Focus and Keystone
1.
Use the
Image-zoom
con-
trol (on the projector only)
to resize the projected im-
age and screen size
A
.
2.
Use the
Image-focus
con-
trol (on the projector only)
to sharpen the projected
image
B
3.
Use the
Keystone
buttons
(on the projector or the
remote control) to correct
image-trapezoid (wider
top or bottom) effect.
The keystone control ap-
pears on the display.