3M MP8790CN - Manual (Page 8)

7
Refer to the illustrations and tables below to determine the screen size and
projection distance.
Adjusting the Screen Size and Projection Distance
If 4:3 aspect ratio
If 16:9 aspect ratio
4
3
9
16
The values shown in the table are calculated for a full size screen
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%)
Screen Size [inch (m)]
a [inch (m)] b
[inch (cm)]
c
[inch (cm)] Min. Max.
30 (0.8) 34 (0.9) 52 (1.3) 0 (0) 18 (46)
40 (1.0) 46 (1.2) 71 (1.8) 0 (0) 24 (61)
50 (1.3) 58 (1.5) 89 (2.3) 0 (0) 30 (76)
60 (1.5) 71 (1.8) 107 (2.7) 0 (0) 36 (91)
70 (1.8) 83 (2.1) 126 (3.2) 0 (0) 42 (107)
80 (2.0) 95 (2.4) 144 (3.7) 0 (0) 48 (122)
90 (2.3) 108 (2.7) 162 (4.1) 0 (0) 54 (137)
100 (2.5) 120 (3.0) 181 (4.6) 0 (0) 60 (152)
120 (3.0) 144 (3.7) 217 (5.5) 0 (0) 72 (183)
150 (3.8) 181 (4.6) 272 (6.9) 0 (0) 90 (229)
200 (5.0) 243 (6.2) 364 (9.2) 0 (0) 120 (305)
250 (6.3) 304 (7.7) 455 (11.6) 0 (0) 150 (381)
300 (7.5) 366 (9.3) 547 (13.9) 0 (0) 180 (457)
Screen Size [inch (m)]
a [inch (m)] b
[inch (cm)]
c
[inch (cm)] Min. Max.
30 (0.8) 37 (0.9) 57 (1.4) 2 (6.2) 17 (44)
40 (1.0) 50 (1.3) 77 (2.0) 13 (32) 27 (70)
50 (1.3) 64 (1.6) 97 (2.5) 16 (41) 31 (78)
60 (1.5) 77 (2.0) 117 (3.0) 19 (49) 34 (86)
70 (1.8) 90 (2.3) 137 (3.5) 22 (57) 37 (94)
80 (2.0) 104 (2.6) 157 (4.0) 26 (65) 40 (102)
90 (2.3) 117 (3.0) 177 (4.5) 29 (73) 43 (110)
100 (2.5) 131 (3.3) 197 (5.0) 32 (81) 47 (118)
120 (3.0) 157 (4.0) 237 (6.0) 38 (97) 53 (134)
150 (3.8) 198 (5.0) 296 (7.5) 48 (121) 63 (159)
200 (5.0) 265 (6.7) 396 (10.1) 64 (162) 78 (199)
250 (6.3) 332 (8.4) 496 (12.6) 80 (202) 94 (240)
300 (7.5) 399 (10.1) 596 (15.1) 96 (243) 110 (280)
Top view
a
c Lens center
The screen
Side view
Top view
a
c
b
Lens center
The screen
Side view