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Appendix
Relationship between Screen Size and Projecting Distance
* The values in the table above are approximations rounded off.
Screen size at 4:3 aspect ratio
Type - W x D cm
Projecting distance
m (feet)
Max. zooming
Projecting distance
m (feet)
Min. zooming
Screen size at 16:9 aspect ratio
W x D cm
40" (81 x 61) 1.2 (3.9') 1.7 (5.6') 81 x 46
50" (102 x 76) 1.5 (4.9') 2.2 (7.1') 102 x 57
60" (122 x 91) 1.8 (5.9') 2.6 (8.5') 122 x 69
70" (142 x 107) 2.1 (6.9') 3.1 (10.0') 142 x 80
80" (163 x 122) 2.4 (7.9') 3.5 (11.4') 163 x 91
90" (183 x 137) 2.7 (8.9') 4.0 (13.1') 183 x 103
100" (203 x 152) 3.0 (9.8') 4.4 (14.6') 203 x 114
110" (224 x 168) 3.3 (10.8') 4.9 (16.1') 224 x 126
120" (244 x 183) 3.6 (11.8') 5.3 (17.4') 244 x 137
130" (264 x 198) 3.9 (12.8') 5.8 (19.0') 264 x 149
140" (284 x 213) 4.2 (13.8') 6.2 (20.2') 284 x 160
150" (305 x 229) 4.5 (14.8') 6.6 (21.7') 305 x 171
160" (325 x 244) 4.8 (15.5') 7.1 (23.3') 325 x 183
170" (345 x 259) 5.1 (16.8') 7.5 (24.6') 345 x 194
180" (366 x 274) 5.4 (17.7') 8.0 (26.3') 366 x 206
190" (386 x 290) 5.7 (18.7') 8.4 (27.6') 386 x 217
200" (406 x 305) 6.0 (19.7') 8.9 (29.2') 406 x 229
210" (427 x 320) 6.4 (20.3') – – 427 x 240
220" (447 x 335) 6.7 (22.0') – – 447 x 251
230" (467 x 351) 7.0 (22.9') – – 467 x 263
240" (488 x 366) 7.3 (23.9') – – 488 x 274
250" (508 x 381) 7.6 (24.8') – – 508 x 286
260" (528 x 396) 7.9 (25.8') – – 528 x 297
270" (549 x 411) 8.2 (27.2') – – 549 x 309
280" (569 x 427) 8.5 (27.9') – – 569 x 320
290" (589 x 442) 8.8 (28.9') – – 589 x 331
300" (610 x 457) 9.1 (29.9') – – 610 x 343
Width
Height
Height
Width
4:3
Screen size
16:9