Acer H7550BDz User Manual - Page 25
To obtain an image size of 70 set the projector at a distance between 1.8 m
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15 • H7550BD/E155D/HE-815J/H1P1406/H7550BDz To obtain an image size of 70" set the projector at a distance between 1.8 m and 2.3 m from the screen and adjust the zoom level accordingly. English 70" Desired image size 1.8 m 2.3 m Desired distance Height: 92 cm From base to top of image Desired Image Size Diagonal (inch) < A > W (cm) x H (cm) 30 66 x 37 40 89 x 50 50 111 x 62 60 133 x 75 70 155 x 87 80 177 x 100 90 199 x 112 100 221 x 125 120 266 x 149 150 332 x 187 180 398 x 224 200 443 x 249 250 553 x 311 300 664 x 374 Zoom Ratio: 1.3 x Distance (m) Max zoom Min zoom < B > < C > 1.0 1.0 1.3 1.3 1.7 1.5 2.0 1.8 2.3 2.0 2.7 2.3 3.0 2.5 3.3 3.1 4.0 3.8 5.0 4.6 6.0 5.1 6.6 6.4 8.3 7.6 Top (cm) From base to top of image < D > 39 52 65 78 92 105 118 131 157 196 235 262 327 392