3M MP8790 Operation Guide - Page 8

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