A p p e n d i x
NOTE: The lens shift is not
adjustable on the optional short
throw lens. It is fixed at zero
degrees.
Projected Image Size for Optional Lenses
Table 4:
Diagonal Image Size and Width vs Distance to Screen-
Long Throw and Short Throw Lenses
Diagonal |
| Distance to screen | |
|
|
| |
Image Size | Image Width | Long Throw | Short Throw |
(inches) | (inches) | (feet) | (feet) |
|
|
|
|
300 | 240 | 100 | N/A |
240 | 192 | 80 | N/A |
180 | 144 | 60 | N/A |
144 | 115 | 48 | 11.5 |
120 | 96 | 40 | 9.6 |
96 | 77 | 32 | 7.7 |
72 | 58 | 24 | 5.8 |
60 | 48 | 20 | 4.8 |
48 | 38 | N/A | 3.8 |
The formulas for distance to the screen are:
Long throw lens distance (ft) = diagonal image size (ft) ÷ .25 Short throw lens distance (ft) = diagonal image size (ft) ÷ 1.042
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