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34 - ENGLISH
Chapter 2 Getting Started — Setting up
Lens type
Projection lens Model No.
Aspect ratio Projection distance (L) formula
Ultra-short focus zoom
lens
ET-DLE080
4:3
Min. (LW) L = 0.6693 x SD (m) – 0.0471
Max. (LT) L = 0.8307 x SD (m) – 0.0442
16:9
Min. (LW) L = 0.7323 x SD (m) – 0.0471
Max. (LT) L = 0.9055 x SD (m) – 0.0442
Short focus zoom lens ET-DLE150
4:3
Min. (LW) L = 1.1024 x SD (m) – 0.0540
Max. (LT) L = 1.5866 x SD (m) – 0.0498
16:9
Min. (LW) L = 1.2008 x SD (m) – 0.0540
Max. (LT) L = 1.7283 x SD (m) – 0.0498
Medium focus zoom lens ET-DLE250
4:3
Min. (LW) L = 1.9213 x SD (m) – 0.0800
Max. (LT) L = 3.0354 x SD (m) – 0.0792
16:9
Min. (LW) L = 2.0945 x SD (m) – 0.0800
Max. (LT) L = 3.3071 x SD (m) – 0.0792
Long focus zoom lens ET-DLE350
4:3
Min. (LW) L = 3.0315 x SD (m) – 0.1351
Max. (LT) L = 4.5787 x SD (m) – 0.1346
16:9
Min. (LW) L = 3.3031 x SD (m) – 0.1351
Max. (LT) L = 4.9882 x SD (m) – 0.1346
Ultra-long focus zoom lens ET-DLE450
4:3
Min. (LW) L = 4.5866 x SD (m) – 0.3017
Max. (LT) L = 7.2520 x SD (m) – 0.2991
16:9
Min. (LW) L = 5.0000 x SD (m) – 0.3017
Max. (LT) L = 7.9016 x SD (m) – 0.2991
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 adjustable feet. The adjustable feet
can also be used to adjust the projector to be level when it is tilted in a 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: 30 mm (1-3/16")
Attention
rf
Hot air is expelled from the air exhaust port when the lamp is on. Do not touch the air exhaust port directly when adjusting the adjustable
feet. (
x
page 21)