Chapter 2
Getting Started — Setting up
36 - ENGLISH
Lens type
Projection Lens
Model No.
Aspect ratio
Projection distance (L) formula
Long focus zoom lens
ET-ELT20
16:10
Min. (LW)
L = 2.3952 x SD
-
0.1139
Max. (LT)
L = 3.9041 x SD
- 0.1128
16:9
Min. (LW)
L = 2.4617 x SD
-
0.1139
Max. (LT)
L = 4.0126 x SD
- 0.1128
4:3
Min. (LW)
L = 2.7115 x SD
-
0.1139
Max. (LT)
L = 4.4197 x SD
- 0.1128
Ultra long focus zoom lens
ET-ELT21
16:10
Min. (LW)
L = 3.9138 x SD
- 0.2127
Max. (LT)
L = 6.2152 x SD
- 0.2107
16:9
Min. (LW)
L = 4.0226 x SD
- 0.2127
Max. (LT)
L = 6.3880 x SD
- 0.2107
4:3
Min. (LW)
L = 4.4307 x SD
- 0.2127
Max. (LT)
L = 7.0361 x SD
- 0.2107
For PT-EX800T
Lens type
Projection Lens
Model No.
Aspect ratio
Projection distance (L) formula
Standard zoom lens
—
4:3
Min. (LW)
L = 1.3346 x SD
-
0.0553
Max. (LT)
L = 2.2677 x SD
- 0.0480
16:9
Min. (LW)
L = 1.4541 x SD
-
0.0553
Max. (LT)
L = 2.4707 x SD
- 0.0480
Fixed-focus lens
ET-ELW21
4:3
—
L = 0.6496 x SD
-
0.0585
16:9
—
L = 0.7078 x SD
-
0.0585
Short focus zoom lens
ET-ELW20
4:3
Min. (LW)
L = 1.0118 x SD
-
0.0558
Max. (LT)
L = 1.3780 x SD
-
0.0540
16:9
Min. (LW)
L = 1.1024 x SD
-
0.0558
Max. (LT)
L = 1.5013 x SD
-
0.0540
Long focus zoom lens
ET-ELT20
4:3
Min. (LW)
L = 2.2693 x SD
- 0.1142
Max. (LT)
L = 3.7031 x SD
-
0.1129
16:9
Min. (LW)
L = 2.4724 x SD
- 0.1142
Max. (LT)
L = 4.0346 x SD
-
0.1129
Ultra long focus zoom lens
ET-ELT21
4:3
Min. (LW)
L = 3.7091 x SD
-
0.2132
Max. (LT)
L = 5.8937 x SD
-
0.2109
16:9
Min. (LW)
L = 4.0339 x SD
-
0.2132
Max. (LT)
L = 6.4212 x SD
-
0.2109
Adjusting adjustable feet
Install the projector on a flat surface so that the front of the projector is parallel to the screen surface and the projected image is rectangular.
If the screen is tilted downward, the projected image can be adjusted to be rectangular by adjusting the front adjustable feet. The adjustable
feet can also be used to adjust the projector to be level when it is tilted in the horizontal direction.
Extend the adjustable feet by rotating in the direction shown in the figure and retract by rotating in the opposite direction.
Adjustable amount
Front adjustable feet: Approx. 25 mm (31/32")
Attention
f
Heated air is expelled from the air exhaust port while the lamp is lit. Do not touch the air exhaust port directly when adjusting the adjustable
feet. (
x
page 23)
