Chapter 2
Getting Started — Setting up
42 - ENGLISH
Formula for calculating the projection distance per projection lens
To use a projected image size not listed in this manual, check the projected image size SD (m) and use the
respective formula to calculate projection distance.
The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)
When calculating a projection distance using image size designation (value in inches), multiply the value in inches
by 0.0254 and substitute it into SD in the formula for calculating the projection distance.
r
Zoom lens
Projection lens Model No.
Throw ratio
Aspect ratio
Projection distance (L) formula
Min. (LW)
Max. (LT)
ET-EMS600
1.35 - 2.10:1
16:10
= 1.1559 x SD
- 0.0491
= 1.8130 x SD
- 0.0399
1.35 - 2.10:1
16:9
= 1.1880 x SD
- 0.0491
= 1.8634 x SD
- 0.0399
1.62 - 2.50:1
4:3
= 1.3086 x SD
- 0.0491
= 2.0524 x SD
- 0.0399
ET-EMW200
0.480 - 0.550:1
16:10
= 0.4189 x SD
- 0.0435
= 0.4888 x SD
- 0.0473
0.480 - 0.550:1
16:9
= 0.4306 x SD
- 0.0435
= 0.5023 x SD
- 0.0473
0.580 - 0.660:1
4:3
= 0.4742 x SD
- 0.0435
= 0.5533 x SD
- 0.0473
ET-EMW300
0.550 - 0.690:1
16:10
= 0.4772 x SD
- 0.0397
= 0.6031 x SD
- 0.0397
0.550 - 0.690:1
16:9
= 0.4904 x SD
- 0.0397
= 0.6199 x SD
- 0.0397
0.660 - 0.830:1
4:3
= 0.5402 x SD
- 0.0397
= 0.6828 x SD
- 0.0397
ET-EMW400
0.690 - 0.950:1
16:10
= 0.6003 x SD
- 0.0518
= 0.8303 x SD
- 0.0460
0.690 - 0.950:1
16:9
= 0.6170 x SD
- 0.0518
= 0.8534 x SD
- 0.0460
0.830 - 1.15:1
4:3
= 0.6795 x SD
- 0.0518
= 0.9400 x SD
- 0.0460
ET-EMW500
0.950 - 1.36:1
16:10
= 0.8185 x SD
- 0.0509
= 1.1760 x SD
- 0.0500
0.950 - 1.36:1
16:9
= 0.8413 x SD
- 0.0509
= 1.2087 x SD
- 0.0500
1.14 - 1.63:1
4:3
= 0.9266 x SD
- 0.0509
= 1.3313 x SD
- 0.0500
ET-EMT700
2.10 - 4.14:1
16:10
= 1.8007 x SD
- 0.1082
= 3.5693 x SD
- 0.1046
2.10 - 4.15:1
16:9
= 1.8508 x SD
- 0.1082
= 3.6685 x SD
- 0.1046
2.50 - 4.97:1
4:3
= 2.0385 x SD
- 0.1082
= 4.0407 x SD
- 0.1046
ET-EMT800
4.14 - 7.40:1
16:10
= 3.3441 x SD + 0.3209
= 6.1906 x SD + 0.2998
4.12 - 7.40:1
16:9
= 3.4371 x SD + 0.3209
= 6.3627 x SD + 0.2998
4.93 - 8.70:1
4:3
= 3.7858 x SD + 0.3209
= 7.0082 x SD + 0.2998
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
projection screen is rectangular.
If the screen is tilted downward, extend the front adjustable feet so that the projected image becomes rectangular.
The adjustable feet can also be used to adjust the projector to be level when it is tilted in the horizontal direction.
Adjustable feet can be extended by turning them as shown in the figure. Turning them in the opposite direction will
return them to the original position.
Maximum adjustable range
Adjustable feet: 23 mm (29/32")
Attention
f
Be careful not to block the intake/exhaust vents with your hands or any objects when adjusting the adjustable feet while the light source is
on. (
x
page 29)
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Страница 34: ...52 ENGLISH Chapter 3 Basic Operations This chapter describes basic operations to start with...
Страница 141: ...ENGLISH 159 Chapter 5 Operations This chapter describes how to use each function...
Страница 195: ...ENGLISH 213 Chapter 7 Appendix This chapter describes specifications and after sales service for the projector...
