Acer H7531D Series - How to Get a Preferred Image Size by Adjusting Distance and Zoom

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English
How to get a preferred image size by adjusting
distance and zoom
The table below shows how to achieve a desired image size by adjusting either
the position or the zoom ring. For example: to obtain an image size of 60" set
the projector at a distance 2.0 m and 2.4 m from the screen and adjust the zoom
level accordingly.
A
C
D
B
60"
Desired
image size
Height: 87cm
Form base to
top of image
Desired Distance
2 m
2.4 m