Acer P5271 - Manual (Page 26)

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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.
¥ • P5271/P5271i/P5271n/P5290 Example: If the projector is 3 m from the screen,
good image quality is possible for image sizes between 56" and 91".
P5271/P5271i/P5271n/P5290
Note: Remind as below figure, the space of 181 cm height is
required when located at 3m distance.
Figure: Fixed distance with different zoom and screen size.
Max screen size
91"
Min screen size
56"
Min screen size
56"6
A
C
B
3m
Desired Distance
Height: 181cm
Form base to
top of image
Height:
111cm