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15
Positioning your projector
English
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting, and the video format each factors in the
projected image size. BenQ has provided separate tables of dimensions for both 16:9 and 4:3 screen ratios to
assist you in determining the ideal location for your projector.
1. Determine the aspect ratio of your screen, (16:9 or 4:3)?
2. Select the Screen Size you desire from the 16:9 ratio screen dimension table or 4:3 ratio screen dimension
table below, according to what screen type you have. Install the projector at a distance from the screen
corresponding to between the Min. and Max. Projection Distance values in the table.
3. Decide the exact height of your projector.
For example, if you are using a 16:9 screen with 80 inches diagonal, you are suggested to place your projector
within a range between 2.34m to 3.18m from the screen. The ideal height of your projector lens center will be
level with the bottom or top side of the screen.
Installation for a 16:9 ratio screen
16:9 (widescreen) ratio screen dimension table
The above numbers are approximate and may be slightly different from the actual measurements. Only
the recommended screen sizes are listed. If the your screen size is not in the table above, please contact
your BenQ dealer for assistance.
An examination of the table reveals that you can place the projector lens in the range from 1.08 to 11.91m
distance from the screen, which will give you a projected image from 0.82 x 0.46m to 6.64 x 3.74m full screen.
Screen
Height
Projection Distance
Type
Offset
Ceiling
Center of the lens
Ceiling Installation
Screen
Height
Offset
Floor
Center of the lens
Type
Projection Distance
Floor Installation
Screen Size Projection Distance Height Offset
Type
(inch) / (cm)
Height
(inch) / (cm)
Width
(inch) / (cm)
Min.
(inch) / (cm)
Max.
(inch) / (cm)
Tele
(inch) / (cm)
Wide
(inch) / (cm)
37 / 94 18.1 / 46 32.3 / 82 42.5 / 108 57.9 / 147 0 / 0 0 / 0
50 / 127 24.4 / 62 43.7 / 111 57.5 / 146 78.4 / 199 0 / 0 0 / 0
60 / 152 29.5 / 75 52.4 / 133 68.9 / 175 93.7 / 238 0 / 0 0 / 0
70 / 178 34.8 / 87 61.0 / 155 80.3 / 204 109.5 / 278 0 / 0 0 / 0
80 / 203 39.4 / 100 69.7 / 177 92.1 / 234 125.2 / 318 0 / 0 0 / 0
90 / 229 44.1 / 112 78.4 / 199 103.5 / 263 140.6 / 357 0 / 0 0 / 0
100 / 254 49.2 / 125 87.0 / 221 115.0 / 292 156.3 / 397 0 / 0 0 / 0
110 / 279 54.8 / 137 96.1 / 244 126.4 / 321 172.1 / 437 0 / 0 0 / 0
120 / 305 58.7 / 149 104.7 / 266 137.8 / 350 187.4 / 476 0 / 0 0 / 0
130 / 325 63.8 / 162 113.4 / 288 149.6 / 380 203.2 / 516 0 / 0 0 / 0
140 / 356 68.5 / 174 122.1 / 310 161.0 / 409 218.9 / 556 0 / 0 0 / 0
150 / 381 73.6 / 187 130.7 / 332 172.4 / 438 234.7 / 596 0 / 0 0 / 0
160 / 406 78.4 / 199 139.4 / 354 183.9 / 467 250.0 / 635 0 / 0 0 / 0
170 / 432 83.5 / 212 148.0 / 376 195.3 / 496 265.8 / 675 0 / 0 0 / 0
180 / 457 88.2 / 224 156.7 / 398 207.1 / 526 281.5 / 715 0 / 0 0 / 0
190 / 483 93.3 / 237 165.8 / 421 218.5 / 555 296.9 / 754 0 / 0 0 / 0
200 / 508 98.0 / 249 174.4 / 443 229.9 / 584 312.6 / 794 0 / 0 0 / 0
250 / 635 122.4 / 311 217.7 / 553 287.4 / 730 390.9 / 993 0 / 0 0 / 0
300 / 762 147.2 / 374 261.4 / 664 344.9 / 876 468.9 / 1191 0 / 0 0 / 0
PE7700-e.book Page 15 Monday, January 10, 2005 11:20 AM