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Setting Up the Projector 15
Keep the projector level and place it at a height so its lens is even with the top or the bottom
of the screen and is centered horizontally. If this isn’t possible, use the horizontal keystone
slider and vertical keystone buttons to adjust the image (see page 27).
Note: Image quality is reduced if keystone correction is used. For the best possible image quality,
avoid using keystone correction.
The size of the image is determined by the distance from the projector’s lens to the screen.
Depending on your display settings and how you use the zoom ring, the actual size may differ.
Use these tables as a guide for projector placement:
16:9 aspect ratio
Projection distance
Diagonal image size
(width × height) Offset
3.8 to 6.2 feet
116 to 190 cm
40 in. (35 × 20 in.)
101.6 cm (89 × 50 cm)
0.1 in.
(0 cm)
5.8 to 9.4 feet
176 to 287 cm
60 in. (51 × 30 in.)
152.4 cm (130 × 75 cm)
0.1 in.
(0 cm)
7.7 to 12.6 feet
235 to 383 cm
80 in. (71 × 39 in.)
203.2 cm (180 × 100 cm)
0.1 in.
(0 cm)
9.7 to 15.7 feet
295 to 480 cm
100 in. (87 × 47 in.)
254 cm (220 × 120 cm)
0.1 in.
(0 cm)
11.6 to 18.9 feet
354 to 576 cm
120 in. (106 × 59 in.)
304.9 cm (270 × 150 cm)
0.1 in.
(0 cm)
14.6 to 23.7 feet
444 to 721 cm
150 in. (130 × 75 in.)
361 cm (330 × 190 cm)
0.2 in.
(1 cm)
17.5 to 28.4 feet
533 to 866 cm
180 in. (173 × 98 in.)
457 cm (440 × 250 cm)
0.3 in.
(1 cm)
Projection distance
Offset
Offset refers to distance from
bottom of image to center of
lens.
Diagonal image size