Acer P7215 - Manual (Page 25)

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English
Screen size Distance (m) Top (cm)
Diagonal
(inch) W (cm) x H (cm)
Max zoom Min zoom
From base to top of
image
30 61 X 46 1.22 1.46 55
40 81 X 61 1.63 1.95 73
50 102 X 76 2.03 2.44 91
60 122 X 91 2.44 2.93 110
70 142 X 107 2.84 3.41 128
80 163 X 122 3.25 3.90 146
90 183 X 137 3.66 4.39 165
100 203 X 152 4.06 4.88 183
120 244 X 183 4.88 5.85 219
Zoom Ratio: 1.2x