NEC GT5000 - Manual (Page 23)

2-5
Lens Shift Adjustable Range
Lens Shift Range for Desktop and Ceiling Mount Application
The diagram below shows the location of the image position in the lens. The lens can be shifted within the shaded area as shown
using the normal projection position as a starting point.
Maximum Possible Range for GT13ZLB/GT19ZL/GT24ZLB/GT34ZLB:
Values in parentheses for GT13ZLB.
Up: 0.39V (0.32V)
Down: 0.39V (0.32V)
Right: 0.24H (0.19H)
Left: 0.24H (0.19H)
(H: width of projected image, V: height of projected image)
NOTE: If lens is shifted in two directions combined, maximum range in either direction cannot be obtained due to rounded off area near edge of lens. (example: shift up
and right) See diagram below.
2. Installation
1H
1H
0.24H
(0.19H)
0.24H
(0.19H)
0.24H
(0.19H)
0.24H
(0.19H)
0.39V
(0.32V)
0.39V
(0.32V)
0.39V
(0.32)
0.39V
(0.32)
1V
1V
1V
Desktop/Front
Vertical
Ceiling/Front
Vertical
Normal position
Normal position
Normal position
Horizontal
Normal projection position
WARNING
* Installing your projector on the ceiling must be done by a qualified
technician. Contact your NEC dealer for more information.
* Do not attempt to install the projector yourself.
• To avoid premature lamp failure, do not tilt the front of the projector up
or down by more than 45 ° from level.
• Only use your projector on a solid, level surface. If the projector falls
to the ground, you can be injured and the projector severely dam-
aged.
• Do not use the projector where temperatures vary greatly. The pro-
jector must be used at temperatures between 32 °F (0°C) and 95°F
(35 °C).
• Do not expose the projector to moisture, dust, or smoke. This will
harm the screen image.
• Ensure that you have adequate ventilation around your projector so
heat can dissipate. Do not cover the vents on the side or the front of
the projector.
Range of lens shift range on GT13ZLB, GT19ZL, GT24ZLB and
GT34ZLB
GT13ZLB Vertical: 12.05 ° to 9.22°
Horizontal: 9.59
° to 7.32°
GT19ZL Vertical: 10.39 ° to 7.49°
Horizontal: 8.56
° to 6.15°
GT24ZLB Vertical: 8.06 ° to 5.14°
Horizontal: 6.63 ° to 4.22°
GT34ZLB Vertical: 5.33
° to 3.42°
Horizontal: 3.29 ° to 2.81°
When performing the lens shift both vertically and horizontally,
the angle on some corners may become narrower than the above-
mentioned one.