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Installation (continued)
Adjusting the feet
The four adjustable feet (p. 14) mounted at the bottom of the projector are level-adjustable (0 mm–15 mm) which
can be used when the floor surface is not horizontal.
Projection scheme
This projector can use any of the four projection schemes. Select the most suitable scheme to the situation of
your location. Use the INSTALLATION menu to choose the desired projection scheme. (p. 76)
Installation geometry
When planning the projector and screen geometry, refer to the figures below and the information on the next page
for reference. After the projector is roughly positioned, picture size and vertical picture positioning can be finely
adjusted with the powered zoom lens and lens shifting mechanism.
When attaching an optional ceiling mount bracket (ET-PKD100H)
Side View
H
H
Screen
L
Projection distance
SH
Height of the image
SW Image width
Vertical distance between the lens centre level and
H
the bottom edge of the projected image
* H = -0.2 × SH to 1.2 × SH
* However, if the ET-D75LE5 has been installed, the
value will be fixed at H=SH/2. If the ET-D75LE6 has
been installed, the values will be H = -0.1 × SH to
1.1 × SH.
20 – ENGLISH
(Front)
(unit : mm)
L
254
L
(Rear)
Top View
L
Screen
Lens
ET-D75LE1
ET-D75LE2
ET-D75LE3
ET-D75LE4
ET-D75LE5
ET-D75LE6
ET-D75LE8
(unit : mm)
200
L1
175
254
Dimension of L1 (Approx.)
62.5
47
50.5
74.4
150.5
160
202.5
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