Acer C112 User Manual - Page 24
How to Optimize Image Size and Distance, required when the projector is located at 2 m distance.
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English 14 How to Optimize Image Size and Distance Consult the table below to find the optimal image sizes achievable when the projector is positioned at a desired distance from the screen. If the projector is 2 m from the screen, good image quality is possible for the image sizes around 50". Note: Remind as below figure, the space of 76 cm height is required when the projector is located at 2 m distance. A 2m Desired distance 50" B Height: 76 cm From base to top of image C Desired Distance (m) < A > Diagonal (inch) < B > Screen Size From base to W (cm) x H (cm) top of image (cm) < C > 0.6 15 33 x 19 23 0.8 20 44 x 25 30 1 25 55 x 31 38 1.5 37 83 x 47 56 2 50 110 x 62 76 2.5 62 138 x 78 94 3 75 166 x 93 114 3.5 87 193 x 109 133 4 100 221 x 124 152 Zoom Ratio: 1.0 x