Adjusting the Screen Size and Projection Distance
Refer to the illustrations and tables below to determine the screen size and projection distance. The values shown in the table are calculated for a full size screen (1024x768 pixels).
a:Distance from the projector to the screen (±10%).
b:Distance from the lens center to the bottom of the screen (±10%).
c:Distance from the lens center to the top of the screen (±10%).
If 4:3 aspect ratio. | The screen | Top view |
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Screen Size | a Inches (m) | b Inches | c Inches | ||
Inches (m) | Minimum | Maximum | (cm) | (cm) | |
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30 (0.8) | 35 (0.9) | 42 (1.1) | 1 (2) | 17 | (55) |
40 (1.0) | 47 (1.2) | 56 (1.4) | 1 (3) | 23 | (58) |
50 (1.3) | 59 (1.5) | 71 (1.8) | 1 (4) | 29 | (73) |
60 (1.5) | 71 (1.8) | 85 (2.2) | 2 (4) | 34 | (87) |
70 (1.8) | 83 (2.1) | 100 (2.5) | 2 (5) | 40 (102) | |
80 (2.0) | 95 (2.4) | 114 (2.9) | 2 (6) | 46 (116) | |
90 (2.3) | 107 (2.7) | 129 (3.3) | 3(7) | 51 (131) | |
100 (2.5) | 119 (3.0) | 143 (3.6) | 3(7) | 57 (145) | |
120 (3.0) | 143 (3.6) | 172 (4.4) | 3(9) | 69 (174) | |
150 (3.8) | 180 (4.6) | 216 (5.5) | 4 (11) | 86 (218) | |
200 (5.0) | 240 (6.1) | 288 (7.3) | 6 (15) | 114 (290) | |
250 (6.3) | 300 (7.6) | 361 (9.2) | 7 (18) | 143 | (363) |
300 (7.5) | 360 (9.2) | 433 (11.0) | 9 (22) | 171 | (435) |
If 16:9 aspect ratio.
Screen Size |
| a Inches (m) | b Inches | c Inches | ||||
Inches (m) | Minimum | Maximum | (cm) | (cm) | ||||
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30 (0.8) | 38 | (1.0) | 46 | (1.2) | 2 | (4) | 16 | (41) |
40 (1.0) | 51 | (1.3) | 61 | (1.6) | 2 | (5) | 22 | (55) |
50 (1.3) | 64 | (1.6) | 77 | (2.0) | 3 | (6) | 27 | (69) |
60 (1.5) | 77 | (2.0) | 93 | (2.4) | 3 | (8) | 32 | (82) |
70 (1.8) | 90 | (2.3) | 109 (2.8) | 4 | (9) | 38 | (96) | |
80 (2.0) | 104 (2.6) | 125 (3.2) | 4 (10) | 43 (110) | ||||
90 (2.3) | 117 (3.0) | 140 (3.6) | 5 (12) | 49 (124) | ||||
100 (2.5) | 130 (3.3) | 156 (4.0) | 5 (13) | 54 (137) | ||||
120 (3.0) | 156 (4.0) | 188 (4.8) | 6 (15) | 65 (165) | ||||
150 (3.8) | 196 (5.0) | 235 (6.0) | 8 (19) | 81 (206) | ||||
200 (5.0) | 261 (6.6) | 314 (8.0) | 10 | (26) | 108 | (275) | ||
250 (6.3) | 327 (8.3) | 393 | (10.0) | 13 | (32) | 135 | (343) | |
300 (7.5) | 393 | (10.0) | 472 | (12.0) | 15 | (39) | 162 | (412) |
Lens center
Side view
The screen | Top view |
Lens center
Side view
7 ViewSonic PJ650
