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2. Installation
BenQ PE8700 User’s Manual
11
Floor Installation
Distance : Projection distance (the distance between the projection lens and the screen. )
Height : The vertical height of the screen lower edge.
Offset : The difference in height between the center of the projection lens and the lower edge of the projection
image at zoom tele. (The projector should be installed horizontally.)
1. Choose the screen width you desire from the chart below, installing the projector at a distance from the screen
between the Minimum and Maximum Distance. (Minimum Distance = 1.36 x Screen Width, Maximum Distance =
1.66 x Screen Width)
2. Fine-tune the projection image size with the zoom and focus rings on the projection lens.
3. Decide on the exact height you desire for the center of the screen’s Height.
4. Place the projector on a table with a suitable height (Height - Offset) to meet your requirements, to avoid any
keystone distortion.
5. Alternatively, use the adjusters to fine-tune the projection angle to meet your requirements, and then use the
keystone correction function to compensate for any distortion.
16:9 (720P mode) (inch)
Center of the lens
Distance
Wall
Lower edge of the screen
Screen Width (W)
40.0 60.0 80.0 90.0 100.0 110.0 120.0 130.0 140.0 160.0 180.0 200.0
Screen Height (H)
22.5 33.8 45.0 50.6 56.3 61.9 67.5 73.1 78.8 90.0 101.3 112.5
Screen Diagonal (D)
45.9 68.9 91.8 103.3 114.8 126.2 137.7 149.2 160.7 183.6 206.6 229.5
Distance Minimum (W *1.36)
54.4 81.6 108.8 122.4 136.0 149.6 163.2 176.8 190.4 217.6 244.8 272.0
Maximum (W *1.66)
66.4 99.6 132.8 149.4 166.0 182.6 199.2 215.8 232.4 265.6 298.8 332.0
Offset (H *1.44) (mm)
32.4 48.6 64.8 72.9 81.0 89.1 97.2 105.3 113.4 129.6 145.8 162.0
Height
Floor
Offet
Height- Offet