107
5. Using On-Screen Menu
[GEOMETRIC CORRECTION]
MODE
Set pattern for correcting distortion. If [OFF] is selected, the [GEOMETRIC CORRECTION] becomes ineffective.
KEYSTONE
Correct distortion in horizontal and vertical directions.
HORIZONTAL ��������� Adjustments when projecting from a diagonal direction to the
screen�
VERTICAL �������������� Adjustments when projecting from the top or bottom direction to
the screen�
TILT ����������������������� Adjusts the distortion when performing trapezoidal correction with the screen moved in the vertical direction
using the lens shift�
THROW RATIO ������� Adjusts according to the projection ratio of the optional lens used�
Model name of lens
unit
Adjustment range
NP16FL
7–8
NP17ZL
12–18
NP18ZL
17–23
NP19ZL
21–37
NP20ZL
34–55
NP21ZL
50–85
NP31ZL
7–10
NP39ML
4
NOTE:
• When power is supplied to the device, the adjustment value of the [KEYSTONE] used previously is retained even if the gradient
of the device is changed.
• As electrical correction is carried out by [KEYSTONE], the brightness may be reduced or the screen quality may deteriorate
sometimes.