27
Preparation
26
1.01 m(40˝)
0.61 m(2´)
0.81 m(2´8˝)
1.6 m(5´2˝)
2.0 m(6´6˝)
1.27 m(50˝)
0.76 m(2´6˝)
1.02 m(3´4˝)
2.0 m(6´6˝)
2.6 m(8´6˝)
1.52 m(60˝)
0.91 m(3´)
1.22 m(4´)
2.4 m(7´10˝)
3.1 m(10´2˝)
1.77 m(70˝)
1.07 m(3´6˝)
1.42 m(4´8˝)
2.8 m(9´2˝)
3.6 m(11´9˝)
2.03 m(80˝)
1.22 m(4´)
1.63 m(5´4˝)
3.2 m(10´5˝)
4.2 m(13´9˝)
2.28 m(90˝)
1.37 m(4´6˝)
1.83 m(6´)
3.6 m(11´9˝)
4.7 m(15´5˝)
2.54 m(100˝) 1.52 m(5´)
2.03 m(6´8˝)
4.0 m(13´1˝)
5.3 m(17´4˝)
3.81 m(150˝) 2.29 m(7´6˝)
3.05 m(10´)
6.1 m(20´)
7.9 m(25´11˝)
5.08 m(200˝) 3.05 m(10´)
4.06 m(13´4˝)
8.1 m(26´6˝)
10.6 m(34´9˝)
6.35 m(250˝) 3.81 m(12´6˝)
5.08 m(16´8˝)
10.1 m(33´1˝)
13.3 m(43´7˝)
7.62 m(300˝) 4.57 m(15´)
6.10 m(20´)
16.0 m(52´5˝)
Projection distances
Setting-up dimensions which are not given in the above table can be
calculated using the formulas below.
If the screen size (diagonal) is SD (m), then the following formula is used to
calculate the projection distance for the wide lens position (LW) and the
projection distance for the telephoto lens position (LT).
For 16:9 aspect ratios, the following formula can be used to calculate the
projection distance.
NOTE:
B
The dimensions in the table above and the values obtained from the
above formulas may contain slight errors.
B
If you use the projection distance for the 16:9 screen, the
4:3 projection image overflows the screen at the top and
bottom.
B
If you set up the projector vertically, it may cause to
damage the projector.
B
It is recommended that you set up the projector in
a place that is tilted at less than ±35°. Setting up
the projector in places that are tilted at more than
±35°
may cause malfunctions.
Make sure that enough space is kept for the air
outlet port.
Screen size (4:3)
Diagonal
length
Height
(SH)
Width
(SW)
Projection distance (L)
Wide
(LW)
Telephoto
(LT)
LW=0.0443xSD/0.0254-0.080
LT=0.0586xSD/0.0254-0.0774
LW=0.0407xSD/0.0254-0.080
LT=0.0538xSD/0.0254-0.0774
12.2 m(40´)
R
Setting-up
Projection methods
In way of installing projector, any one of the following four projection methods
are used. Select whichever projection method matches the setting-up
method. (The projection method can be set from the OPTION menu. Refer to
page 45 for details.)
FRONT/REAR
FRONT
REAR
(Factory default setting)
NOTE:
B
You will need to purchase the separate ceiling bracket (ET-PK780) when
using the ceiling installation method.
Projector position
DESK/CEILING
DESK
CEILING
L
L
SH
SW
25(31/32)
L:
Projection distance
SH: Image height
SW: Image width
Top edge of screen
Screen
Bottom edge of screen
Screen
<Units: mm (inch)>
