
| Maximum zoom | Minimum zoom | 
| Offset | 
Screen  Center of lens
Center of lens
Projection distance
| 4:3 Screen Diagonal | Distance from Screen in mm | Vertical Offset in mm | ||||
| Feet | Inches | mm | Min length | Average | Max length | 
 | 
| 
 | 
 | 
 | (with max. | 
 | (with min. | 
 | 
| 
 | 
 | 
 | zoom) | 
 | zoom) | 
 | 
| 4 | 48 | 1219 | 1745 | 1876 | 2007 | 18 | 
| 
 | 
 | 1500 | 2148 | 2199 | 2250 | 23 | 
| 5 | 60 | 1524 | 2182 | 2345 | 2509 | 23 | 
| 6 | 72 | 1829 | 2618 | 2815 | 3011 | 27 | 
| 
 | 
 | 2000 | 2863 | 3078 | 3293 | 30 | 
| 7 | 84 | 2134 | 3055 | 3284 | 3513 | 32 | 
| 8 | 96 | 2438 | 3491 | 3753 | 4015 | 36 | 
| 
 | 
 | 2500 | 3579 | 3848 | 4116 | 38 | 
| 9 | 108 | 2743 | 3927 | 4222 | 4516 | 41 | 
| 
 | 
 | 3000 | 4295 | 4617 | 4939 | 45 | 
| 10 | 120 | 3048 | 4364 | 4691 | 5018 | 46 | 
| 
 | 
 | 3500 | 5011 | 5387 | 5763 | 53 | 
| 12 | 144 | 3658 | 5236 | 5629 | 6022 | 55 | 
| 
 | 
 | 4000 | 5727 | 6157 | 6586 | 60 | 
| 15 | 180 | 4572 | 6545 | 7036 | 7527 | 69 | 
| 
 | 
 | 5000 | 7158 | 7695 | 8232 | 75 | 
| 18 | 216 | 5486 | 7855 | 8444 | 9033 | 82 | 
| 
 | 
 | 6000 | 8590 | 9234 | 9878 | 90 | 
| 25 | 300 | 7620 | 10909 | 11727 | 12545 | 114 | 
 There is 3% tolerance among these numbers due to optical component variations.
 There is 3% tolerance among these numbers due to optical component variations.
