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Positioning your projector
Ceiling installation for a 4:3 ratio screen
Floor installation for a 4:3 ratio screen
4:3 (standard) ratio screen dimension table:
The above numbers are approximate and may be slightly different from the actual measurements.
An examination of the table reveals that you can place the projector lens in the range from 1.73 to 8.47m
distance from the screen, which will give you a projected image from 1.02 x 0.62m to 4.43 x 2.49m.
Screen Size Projection
Distance
Height Offset Image
Height
(cm)
Type
(inch)
Height
(cm)
Width
(cm)
Min.
(cm)
Max.
(cm)
Tele
(cm)
Wide
(cm)
50 76 102 173 212 21 20 62
60 91 122 207 254 25 24 75
70 107 142 242 297 29 29 87
80 122 163 276 339 34 33 100
90 137 183 311 381 38 37 112
100 152 203 345 424 42 41 125
110 168 224 380 466 46 45 137
120 183 244 414 508 50 49 149
130 198 264 449 551 55 53 162
140 213 284 483 593 59 57 174
150 229 305 518 636 63 61 187
160 244 354 553 678 67 65 199
170 259 376 587 720 71 70 212
180 274 398 622 763 76 74 224
190 290 421 656 805 80 78 237
200 305 443 691 847 84 82 249
Screen
Image Height
Projection Distance
Offset
Screen Size
Ceiling
Center of the lens
Projection Distance
Floor
Screen
Image Height
Offset
Center of the lens