20 –
ENGLISH
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.
(Front) (Rear)
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)
z
254
580.5 - 700.5
H
H
SH
L
L
Side View
(unit : mm)
Screen
L
175
254
L1
200
SW
314
120
66
Top View (unit : mm)
Screen
L Projection distance
SH Height of the image
SW Image width
H
Vertical distance between the lens centre level and
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.
Lens Dimension of L1 (Approx.)
ET-D75LE1 62.5
ET-D75LE2 47
ET-D75LE3 50.5
ET-D75LE4 74.4
ET-D75LE5 150.5
ET-D75LE6 160
ET-D75LE8 202.5