Use the table below to calulate projection distance corresponding to the desired screen size. All measures are given in inches and centimetres.
| viewing size w x h |
nominal screen size (diagonal) |
projection distance (to lens in cm / in) |
max offset |
|
|
standard zoom |
long throw zoom* |
wide angle* |
|
| in |
cm |
in |
cm |
min |
max |
min |
max |
|
cm / in |
| 63 x 35.5 |
160 x 90 |
72 |
184 |
280 / 110 |
360 / 142 |
400 / 157 |
560 / 220 |
160 / 63 |
14 / 5.5 |
| 72 x 40.5 |
182 x 103 |
82 |
208 |
319 / 126 |
410 / 161 |
455 / 179 |
637 / 251 |
182 / 72 |
16 / 6.3 |
| 80 x 45 |
203 x 114 |
92 |
234 |
355 / 140 |
457 / 180 |
507 / 200 |
711 / 280 |
203 / 80 |
18 / 7.1 |
| 87 x 49 |
221 x 125 |
100 |
254 |
386 / 152 |
497 / 196 |
552 / 217 |
774 / 305 |
221 / 87 |
20 / 7.9 |
| 92 x 52 |
234 x 132 |
106 |
269 |
410 / 161 |
527 / 207 |
585 / 230 |
820 / 323 |
234 / 92 |
21 / 8.3 |
| 96 x 54 |
244 x 137 |
110 |
280 |
427 / 168 |
549 / 216 |
610 / 240 |
854 / 336 |
244 / 96 |
22 / 8.7 |
| 104 x 58 |
264 x 147 |
119 |
302 |
462 / 182 |
594 / 234 |
660 / 260 |
924 / 364 |
264 / 104 |
24 / 9.5 |
| +/- 5% accuracy |
*) optional lenses |
|
