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Evaluate for distance by image size
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting (if available), and the
video format each factors in the projected image size.
Projection dimensions
Refer to "Dimensions" on page 74 for the center of lens dimensions of this projector before
calculating the appropriate position.
*** "A" is based on maximum lens shift offset position 55%
LU9750/LU9800
The screen aspect ratio is 16:10 and the projected picture is 16:10.
Note:
To optimize the projection quality, we suggest to project images in an area without grayscale.
Lens
Wide Zoom 2
(LS2ST2A)
Standard
(LS1SDA)
Throw ratio 1.1~1.3 1.54~1.93
Diagonal Image Width Image Height
Offset (A) O Distance Distance
Wide/Tele Wide/Tele Wide Tele Wide Tele
(Inch) (m) (Inch) (m) (Inch) (m) (Inch) (m) (Inch) (m) (Inch) (m) (Inch) (m) (Inch) (m) (Inch) (m)
50 1.27 42 1.08 26 0.67 1.3 0.034 14.6 0.370 47 1.18 55 1.40 65 1.66 82 2.08
60 1.52 51 1.29 32 0.81 1.6 0.040 17.5 0.444 56 1.42 66 1.68 78 1.99 98 2.49
80 2.03 68 1.72 42 1.08 2.1 0.054 23.3 0.592 75 1.90 88 2.24 104 2.65 131 3.33
100 2.54 85 2.15 53 1.35 2.6 0.067 29.1 0.740 93 2.37 110 2.80 131 3.32 164 4.16
120 3.05 102 2.58 64 1.62 3.2 0.081 35.0 0.888 112 2.84 132 3.36 157 3.98 196 4.99
150 3.81 127 3.23 79 2.02 4.0 0.101 43.7 1.111 140 3.55 165 4.20 196 4.98 245 6.24
180 4.57 153 3.88 95 2.42 4.8 0.121 52.5 1.333 168 4.26 198 5.04 235 5.97 295 7.48
200 5.08 170 4.31 106 2.69 5.3 0.135 58.3 1.481 187 4.74 220 5.60 261 6.63 327 8.31
250 6.35 212 5.38 132 3.37 6.6 0.168 72.9 1.851 233 5.92 276 7.00 326 8.29 409 10.39
300 7.62 254 6.46 159 4.04 7.9 0.202 87.4 2.221 280 7.11 331 8.40 392 9.95 491 12.47
350 8.89 297 7.54 185 4.71 9.3 0.236 102.0 2.591 326 8.29 386 9.80 457 11.61 573 14.55
400 10.16 339 8.62 212 5.38 10.6 0.269 116 .6 2.962 373 9.48 441 11. 2 0 522 13.27 655 16.63
500 12.70 424 10.77 265 6.73 13.2 0.337 145.7 3.702 466 11. 8 5 551 14.00 653 16.59 818 20.79
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