ENGLISH – 21
Getting Started
Every type of optional projection lenses has a different projection distance to achieve the same screen size. Select
and purchase a projection lens most suitable to the size of your location referring to the following tables and the
projection distances by the type of projection lenses on the next page.
Note
The projection distances listed here involve an error of ±5 %.
Keystone distortions are corrected in the way the screen size becomes smaller than the original one.
Projection distances by the type of projection lenses (for PT-DW10000E)
For the screen aspect ratio of 16:9 (Units: m)
*1: “Throw ratio” is the approximate measurement range of the screen width to the projection distance.
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L
SH
SW
L : Projection distance
SH : Effective screen height
SW : Effective screen width
Screen
Screen
Side View
Top View
L
SH
SW
L : Projection distance
SH : Effective screen height
SW : Effective screen width
Screen
Screen
Side View
Top View
Lens type Zoom lens Fixed-focus
lens
Model number of
projection lens ET-D75LE1 ET-D75LE2 ET-D75LE3 ET-D75LE4 ET-D75LE8 ET-D75LE6 ET-D75LE5
Throw ratio*11.4-1.8 : 1 1.8-2.8 : 1 2.8-4.6 : 1 4.6-7.4 : 1 7.3-13.8 : 1 0.9-1.1 : 1 0.7 : 1
Screen dimensions Projection distance (L)
Screen
size
(inch)
Effective
height
(SH)
Effective
width
(SW)
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Fixed
70 0.872 1.550 2.07 2.77 2.80 4.21 4.23 7.09 7.10 11.37 11.09 21.14 1.39 1.66 1.02
80 0.996 1.771 2.38 3.18 3.21 4.83 4.84 8.13 8.13 13.01 12.73 24.21 1.60 1.91 1.18
90 1.121 1.992 2.68 3.59 3.62 5.45 5.46 9.16 9.16 14.65 14.37 27.29 1.81 2.16 1.34
100 1.245 2.214 2.99 4.00 4.04 6.07 6.08 10.19 10.19 16.29 16.01 30.36 2.01 2.41 1.50
120 1.494 2.657 3.60 4.82 4.86 7.30 7.31 12.25 12.26 19.57 19.29 36.50 2.43 2.90 1.81
150 1.868 3.321 4.53 6.05 6.09 9.15 9.16 15.34 15.35 24.49 24.21 45.72 3.05 3.65 2.29
200 2.491 4.428 6.06 8.10 8.15 12.24 12.25 20.50 20.50 32.69 32.40 61.08 4.08 4.89 3.08
250 3.113 5.535 7.59 10.15 10.21 15.33 15.34 25.65 25.66 40.88 40.60 76.44 5.12 6.13 3.87
300 3.736 6.641 9.13 12.19 12.27 18.41 18.42 30.81 30.81 49.08 48.80 91.79 6.15 7.37 4.66
350 4.358 7.748 10.66 14.24 14.32 21.50 21.51 35.96 35.97 57.28 57.00 107.15 7.19 8.61
400 4.981 8.855 12.19 16.29 16.38 24.58 24.60 41.12 41.12 65.47 65.19 122.51 8.22 9.85
500 6.226 11.069 15.26 20.39 20.50 30.76 30.77 51.42 51.43 81.87 81.59 153.23 10.29 12.33
600 7.472 13.283 18.33 24.49 24.61 36.93 36.94 61.73 61.74 98.26 97.98 183.95 12.36 14.81
Lens type Zoom lens Fixed-focus
lens
Model number of
projection lens ET-D75LE1 ET-D75LE2 ET-D75LE3 ET-D75LE4 ET-D75LE8 ET-D75LE6 ET-D75LE5
Throw ratio*11.4-1.8 : 1 1.8-2.8 : 1 2.8-4.6 : 1 4.6-7.4 : 1 7.3-13.8 : 1 0.9-1.1 : 1 0.7 : 1
Screen dimensions Projection distance (L)
Screen
size
(inch)
Effective
height
(SH)
Effective
width
(SW)
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Fixed
70 0.872 1.550 2.07 2.77 2.80 4.21 4.23 7.09 7.10 11.37 11.09 21.14 1.39 1.66 1.02
80 0.996 1.771 2.38 3.18 3.21 4.83 4.84 8.13 8.13 13.01 12.73 24.21 1.60 1.91 1.18
90 1.121 1.992 2.68 3.59 3.62 5.45 5.46 9.16 9.16 14.65 14.37 27.29 1.81 2.16 1.34
100 1.245 2.214 2.99 4.00 4.04 6.07 6.08 10.19 10.19 16.29 16.01 30.36 2.01 2.41 1.50
120 1.494 2.657 3.60 4.82 4.86 7.30 7.31 12.25 12.26 19.57 19.29 36.50 2.43 2.90 1.81
150 1.868 3.321 4.53 6.05 6.09 9.15 9.16 15.34 15.35 24.49 24.21 45.72 3.05 3.65 2.29
200 2.491 4.428 6.06 8.10 8.15 12.24 12.25 20.50 20.50 32.69 32.40 61.08 4.08 4.89 3.08
250 3.113 5.535 7.59 10.15 10.21 15.33 15.34 25.65 25.66 40.88 40.60 76.44 5.12 6.13 3.87
300 3.736 6.641 9.13 12.19 12.27 18.41 18.42 30.81 30.81 49.08 48.80 91.79 6.15 7.37 4.66
350 4.358 7.748 10.66 14.24 14.32 21.50 21.51 35.96 35.97 57.28 57.00 107.15 7.19 8.61
400 4.981 8.855 12.19 16.29 16.38 24.58 24.60 41.12 41.12 65.47 65.19 122.51 8.22 9.85
500 6.226 11.069 15.26 20.39 20.50 30.76 30.77 51.42 51.43 81.87 81.59 153.23 10.29 12.33
600 7.472 13.283 18.33 24.49 24.61 36.93 36.94 61.73 61.74 98.26 97.98 183.95 12.36 14.81