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Chapter 2 Getting Started — Setting up
ENGLISH - 45
Projection lens Model No. Throw ratio Aspect ratio Projection distance (L) formula
ET-D75LE20
1.8 to 2.7:1 16:9
Min. (LW) L = 1.6324 x SD
-
0.0832
Max. (LT) L = 2.3720 x SD
-
0.1162
2.5 to 3.6:1 4:3
Min. (LW) L = 1.9986 x SD
-
0.0832
Max. (LT) L = 2.9040 x SD
-
0.1162
ET-D75LE30
2.7 to 5.2:1 16:9
Min. (LW) L = 2.3550 x SD
-
0.1131
Max. (LT) L = 4.5673 x SD
-
0.1765
3.6 to 6.9:1 4:3
Min. (LW) L = 2.8833 x SD
-
0.1131
Max. (LT) L = 5.5917 x SD
-
0.1765
ET-D75LE40
5.1 to 8.2:1 16:9
Min. (LW) L = 4.5092 x SD
-
0.1577
Max. (LT) L = 7.1891 x SD
-
0.1615
6.8 to 10.9:1 4:3
Min. (LW) L = 5.5206 x SD
-
0.1577
Max. (LT) L = 8.8016 x SD
-
0.1615
r Fixed-focus lens
Projection lens Model No. Throw ratio Aspect ratio Projection distance (L) formula
ET-D75LE5
0.8:1 16:9 L = 0.6929 x SD
-
0.0835
1.0:1 4:3 L = 0.8504 x SD
-
0.0835
ET-D75LE50
0.8:1 16:9 L = 0.6925 x SD
-
0.0713
1.0:1 4:3 L = 0.8479 x SD
-
0.0713
Adjusting adjustable feet
Install the projector on a at surface so that the front of the projector is parallel to the screen surface and the projection screen is rectangular.
If the screen is tilted downward, the projection screen 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 gure and retract by rotating in the opposite direction.
Adjustable amount
Front adjustable feet: Approx. 50 mm (1-31/32")
Rear adjustable feet: Approx. 10 mm (13/32")
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 25)