19
RLM
W12
Horizontal and vertical lens shift
In addition to using the adjustable feet to adjust projection angle, you can also use the Lens
Shift function to adjust the projected image.
Moving the lens vertically
The distance of vertical lens movement is +110% , -70% of half the screen height in both
directions.For instance, if you are using a 80" × 50" screen, you will be able to move the
image upwards no more than 27.5'' or downwards no more than 17.5''.
Range of vertica
l
lens shift adjustment
Range of vertical
lens shif
t
adjustment
This illustration shows normal
vertical lens shift without the
use of special specifi cation
lens or projector.
Note:Please make sure the center of lens is retangular to the center of the ccreen.
Moving the lens horizontally
The distance of horizontal lens movement is 30% of half the screen width in both directions.
For instance, if you are using a 80" × 50" screen, you will be able to move the image left or
right by no more than 12".
Range of
horizontal
lens shif
t
adjustment
Range of
horizontal
lens shif
t
adjustment
This illustration shows normal
horizontal lens shift without the
use of special specifi cation lens
or projector.
Note: when the lens is in the
neutral position (i.e. without
horizontal or vertical shift),
the center of the projection
should be aligned with the
center of the screen.
Installing the projector