Panasonic ET-D3QW200 Operating Instructions Manual page 10

Zoom lens
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Projection relationships (continued)
■ [GEOMETRY] projection range
[VERTICAL KEYSTONE] (viewed from the side)
Vertical arc correction (viewed from the side)
L2: Projection
distance
R2: Arc radius
L3
Only [KEYSTONE]
Projector
Vertical
model
keystone
correction
angle α (°)
PT-RQ50K
±15
10-ENGLISH
Screen
Screen
L2
R2
L3: Projection
distance
R3: Arc radius
Arc center
Screen
R3
[KEYSTONE] and [CURVED CORRECTION]
used
Horizontal
Vertical
keystone
keystone
correction
correction
angle β (°)
angle α (°)
±5
-
[HORIZONTAL KEYSTONE] (viewed from above)
Horizontal arc correction (viewed from above)
L2: Projection
distance
R2: Arc radius
used together
Horizontal
keystone
Min. value
correction
of R2/L2
angle β (°)
-
-
Screen
Screen
L2
R2
L3: Projection
distance
R3: Arc radius
Arc center
Screen
L3
R3
Only [CURVED
CORRECTION] used
Min. value
Min. value
of R3/L3
of R2/L2
-
-
Min. value
of R3/L3
-

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