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5
Positioning the projector
To determine where to position the projector, consider the size and shape of
your screen, the location of your power outlets, and the distance between the
projector and the rest of your equipment. Here are some general guidelines:
• Position the projector on a flat surface at a right angle to the screen. The
projector must be at least 4.9 feet (1.5m) from the projection screen.
• Position the projector within 10 feet (3m) of your power source and
within 6 feet (1.8m) of your video device (unless you purchase
extension cables). To ensure adequate cable access, do not place the
projector within 6 inches (.15m) of a wall or other object.
• If you are installing the projector on the ceiling, refer to the installation
guide that comes with the Ceiling Mount Kit for more information. To
turn the image upside down, see “Ceiling mount” on page 31. We
recommend using an InFocus authorized ceiling mount.
• Position the projector the desired distance from the screen. The
distance from the lens of the projector to the screen, the zoom setting,
and the video format determine the size of the projected image.
• The image exits the projector at a given angle. IN3102/IN3104 image
offset is 115%; IN3106/IN3108 image offset is 112.4%. This means if
you have an image 10’ high, the bottom of the image will be 1.5'
(IN3102/IN3104) and 1.24' (IN3106/IN3108) above the center of the
lens.
Table 1: (IN3102 & IN3104)
Range of distance to the screen for a given screen size
Diagonal Screen
Size (inches/m)
Distance to screen
Maximum
distance (feet/m)
Minimum
Distance (feet/
m)
60/1.5 8.6/2.6 7.8/2.4
80/2.0 11.5/3.5 10.4/3.2
90/2.3 12.9/3.9 11.7/3.6
150/3.8 21.5/6.6 19.5/5.9
Table 2: (IN3106 & IN3108)
Range of distance to the screen for a given screen size
Diagonal Screen
Size (inches/m)
Distance to screen
Maximum
distance (feet/m)
Minimum
Distance (feet/
m)
60/1.5 7.3/2.2 6.5/2.0
(IN3102 & IN3104)
(IN3106 & IN3108)
10 ft high
image
10 ft high
image
bottom of image
1.24 ft above center
of lens
Projection angle
lens center
bottom of image
1.5 ft above center
of lens
Projection angle
lens center