6-ENGLISH
Preparation (continued)
Peripheral focus adjustment function
When you change the size of the projected image, the focal balance between the center
and peripheral areas of the screen may shift. This shift in balance tends to increase
proportionally with smaller throw ratios.
The ET-D3QW200 is equipped with a peripheral focus adjustment function to correct the
shift in focal balance between the center and peripheral areas of the screen.
1) Turn the peripheral focus
adjustment ring in the
direction of the arrow to
match the projection distance
displayed on the lens to the
actual distance from the lens
to the screen.
2) Operate the projector to align
the focus of the center of the
projected image.
Note
z
The projection distances displayed on the lens are approximate guides.
z
The lens focus is not stable immediately after powering on due to the affect of heat
produced by the light from the light source.
It is recommended that the focus be adjusted after the image has been projected for
approximately 1 hour.
■
Adjusting the focus
Peripheral focus adjustment ring
Summary of Contents for ET-D3QW200
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