Epson Projector PT EZ590 User Manual

							Chapter 2 Getting Started — Setting up
ENGLISH - 31
Setting up
Installation mode
There are four ways to set up the projector. Set the [PROJECTOR SETUP] menu 
→ [PROJECTION METHOD] 
( x  page 93) depending on the installation method.
Mounting on the ceiling and projecting forward
Mounting on the ceiling and projecting from rear
(Using the translucent screen)
Menu itemMethodMenu item Method
[PROJECTION METHOD] [AUTO] or [FRONT/CEILING] [PROJECTION METHOD] [REAR/CEILING]
Setting on a desk/floor and projecting forward Setting on a desk/floor and projecting from rear
(Using the translucent screen)
Menu itemMethodMenu item Method
[PROJECTION METHOD] [AUTO] or [FRONT/DESK] [PROJECTION METHOD] [REAR/DESK]
Note
 
f The projector has a built-in angle sensor. When projecting in front of the screen, if set the [PROJECTOR SETUP] menu → [PROJECTION 
METHOD] → [AUTO], the projector’s posture will be detected automatically. When projecting from rear, please set the [PROJECTION 
METHOD] to [REAR/DESK] or [REAR/CEILING].
 
r Angle sensor
The range of installation posture detected by the projector’s built-in angle sensor is as follows.
30°
30°

[FRONT/DESK] 
[FRONT/DESK] [FRONT/CEILING]
Projection direction
Parts for ceiling mount (optional)
The projector can be installed on the ceiling by combining the optional Ceiling Mount Bracket (Model No.: 
ET -PKD120H (for High Ceilings), ET -PKD120S (for Low Ceilings)) and ET -PKE300B (Projector Mount Bracket).
 
f Be sure to use the Ceiling Mount Bracket specified for this projector
.
 
f Refer to the Installation Instructions supplied with the Ceiling Mount Bracket when installing the projector with 
the bracket.             
						

							Chapter 2 Getting Started — Setting up
32 - ENGLISH
Attention
 
f To ensure projector performance and security, installation of the Ceiling Mount Bracket must be carried out by your dealer or a qualified 
technician.
Projected image and throw distance
Refer to the screen size and projection distances to install the projector
. Image size and image position can be 
adjusted in accordance with the screen size and screen position.
SD
L (LW/LT) L1
L1
L (LW/LT)
SW SH
H SH
SW
Projected image
Screen
Screen
Note
 
f This illustration is represented on the assumption that the size and position of the projection screen are matched to fill the screen.
(Unit: m)
L (LW/LT)*1Projection distance
L1 Lens protrusion dimension
SH Projected image height
SW Projected image width
H Distance from the lens center to the bottom edge of the projected image
(When setting on a desk/floor, if the bottom edge of the projected image is below the lens center, the value 
of H is positive.)
SD Projected image size
*1 LW: Minimum projection distance when the Zoom Lens is used
LT: Maximum projection distance when the Zoom Lens is used
(Unit: m)
Projection lens Model No. Dimension for L1 (approximate value)
Standard zoom lens 0.040
ET-ELT30 0.081
ET-ELT31 0.092
ET-ELW30 0.071
ET-ELW31 0.070
Attention
 
f Before setting up, read “Precautions for use” (
x page 17).
[SCREEN ADJUSTMENT] projection range
[VERTICAL KEYSTONE] (viewed from the side)
[HORIZONTAL KEYSTONE] (viewed from above)
Screen
Screen   
						

							Chapter 2 Getting Started — Setting up
ENGLISH - 33
Vertical arc correction (viewed from the side)
Horizontal arc correction (viewed from above)
ScreenProjection distance
Arc radiusScreen
Projection distance
Arc radius
Screen
Projection distance
Arc radius
Arc centerScreen
Projection distance
Arc radius
Arc center
 
r For standard zoom lens
Model No. Only [KEYSTONE] used
[KEYSTONE] and [CURVED CORRECTION] used 
together Only [CURVED 
CORRECTION] used
Vertical 
keystone 
correction  angle α (°) Horizontal 
keystone 
correction  angle β (°) Vertical 
keystone 
correction  angle α (°) Horizontal 
keystone 
correction  angle β (°) Min. value 
of R2/L2 Min. value 
of R3/L3 Min. value 
of R2/L2 Min. value 
of R3/L3
PT-EZ590 ±25±30±20±15 1.42.90.71.6
PT-EW650, PT-EW550 ±35
±35±35±35 1.01.01.01.0
PT-EX620, PT-EX520 ±35
±35±35±35 0.80.90.80.9
Note
 
f When [SCREEN ADJUSTMENT] is used, the focus of the entire screen may be lost as correction increases.
 
f Make the curved screen a circular arc shape with one part of a perfect circle removed.
Projection distance per projection lens
A ± 5% error in listed projection distances may occur.
In addition, when [SCREEN ADJUSTMENT] is used, distance is corrected to become smaller than the specified 
screen size.
For PT -EZ590, PT-EW650, PT-EW550
 
r When the image aspect ratio is 16:10
(Unit: m)
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.22-2.26:1
0.74-0.96:1 0.96-1.22:12.23-4.02:14.02-7.20:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.02 (40") 0.5380.862 1.031.940.620.810.78 1.03 1.86 3.42 3.53 6.35 
-0.05 ~ 0.59   
						

							Chapter 2 Getting Started — Setting up
34 - ENGLISH
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.22-2.26:1
0.74-0.96:1 0.96-1.22:12.23-4.02:14.02-7.20:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.27 (50") 0.6731.077 1.29 2.42 0.781.020.98 1.29 2.35 4.29 4.37 7.88 
-0.07 ~ 0.74
1.52 (60") 0.8081.292 1.55 2.91 0.94 1.23 1.18 1.55 2.83 5.16 5.21 9.41 
-0.08 ~ 0.89
1.78 (70") 0.9421.506 1.82 3.41 1.10 1.44 1.39 1.82 3.33 6.06 6.08 11.00 
-0.09 ~ 1.04
2.03 (80") 1.0771.723 2.09 3.89 1.26 1.65 1.59 2.08 3.82 6.93 6.93 12.54 
-0.11 ~ 1.18
2.29 (90") 1.2121.939 2.36 4.40 1.43 1.87 1.79 2.35 4.32 7.84 7.80 14.13 
-0.12 ~ 1.34
2.54 (100") 1.3462.154 2.62 4.88 1.59 2.07 1.99 2.61 4.80 8.71 8.64 15.66 
-0.13 ~ 1.48
3.05 (120") 1.6152.585 3.15 5.87 1.91 2.50 2.40 3.14 5.79 10.49  10.35 18.79 
-0.16 ~ 1.78
3.81 (150") 2.0193.231 3.94 7.34 2.40 3.13 3.01 3.93 7.26 13.13  12.91 23.44 
-0.20 ~ 2.22
5.08 (200") 2.6924.308 5.27 9.79 3.21 4.18 4.02 5.25 9.71 17.55  17.18 31.23 
-0.27 ~ 2.96
6.35 (250") 3.3655.385 6.59 12.25  4.01 5.23 5.03 6.57 12.17  21.98 21.45 39.01 
-0.34 ~ 3.70
7.62 (300") 4.0396.462 7.92 14.71  4.82 6.29 6.05 7.89 14.63  26.40 25.72 46.79 
-0.40 ~ 4.44
8.89 (350") 4.7127.539 9.24 17.16  5.63 7.34 7.06 9.21 17.08  30.82 29.99 54.58 
-0.47 ~ 5.18
10.16 (400") 5.3858.61610.57 19.62  6.44 8.39 8.07 10.53  19.54 35.25 34.26 62.36 
-0.54 ~ 5.92
*1 The throw ratio is based on the value during projection with the projected image size of 2.03 m (80").
 
r When the image aspect ratio is 16:9
(Unit: m)
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.22-2.26:1
0.74-0.96:1 0.96-1.22:12.23-4.02:1 4.02-7.20:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.02 (40") 0.498 0.886  1.06 1.99 0.64 0.84 0.80 1.06 1.92 3.51 3.62 6.52 
-0.08 ~ 0.58
1.27 (50") 0.622 1.107  1.33 2.49 0.80 1.05 1.01 1.32 2.41 4.41 4.49 8.09 
-0.10 ~ 0.73
1.52 (60") 0.745 1.325  1.60 2.99 0.96 1.26 1.21 1.59 2.91 5.30 5.35 9.67 
-0.12 ~ 0.87
1.78 (70") 0.872 1.552  1.88 3.51 1.13 1.48 1.43 1.87 3.43 6.23 6.25 11.31 
-0.15 ~ 1.02
2.03 (80") 0.995 1.770  2.14 4.00 1.30 1.70 1.63 2.13 3.92 7.13 7.12 12.88 
-0.17 ~1.16
2.29 (90") 1.122 1.997  2.42 4.52 1.47 1.92 1.84 2.41 4.44 8.06 8.01 14.52 
-0.19 ~ 1.31
2.54 (100") 1.245 2.215  2.69 5.02 1.63 2.13 2.05 2.68 4.94 8.96 8.88 16.09 
-0.21 ~ 1.45
3.05 (120") 1.495 2.660  3.24 6.03 1.97 2.57 2.47 3.22 5.95 10.78  10.64 19.31 
-0.25 ~ 1.74
3.81 (150") 1.867 3.322  4.05 7.54 2.46 3.21 3.09 4.04 7.46 13.50  13.27 24.09 
-0.31 ~ 2.18
5.08 (200") 2.489 4.430  5.42 10.07  3.30 4.30 4.13 5.39 9.99 18.05  17.66 32.09 
-0.41 ~ 2.90
6.35 (250") 3.112 5.537  6.78 12.59  4.13 5.38 5.17 6.75 12.51  22.59 22.04 40.09 
-0.52 ~ 3.63
7.62 (300") 3.734 6.645  8.14 15.11  4.96 6.46 6.22  8.11 15.04  27.14 26.43 48.09 
-0.62 ~ 4.36
8.89 (350") 4.356 7.752  9.50 17.64  5.79 7.55 7.26 9.46 17.56  31.68 30.82 56.09 
-0.73 ~ 5.08
10.16 (400") 4.978 8.860 10.8620.16  6.62 8.63 8.30 10.82  20.09 36.23 35.21 64.09 
-0.83 ~ 5.81
*1 The throw ratio is based on the value during projection with the projected image size of 2.03 m (80").  
 
r When the image aspect ratio is 4:3
(Unit: m)
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.46-2.72:1
0.88-1.15:1 1.11-1.45:12.67-4.84:1 4.82-8.73:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.02 (40") 0.610 0.813  1.17 2.200.70 0.92 0.89 1.17 2.12 3.88 3.98 7.17 
-0.06 ~ 0.67
1.27 (50") 0.762 1.016  1.47 2.75 0.88 1.16  1.11 1.46  2.67 4.87 4.93 8.91 
-0.08 ~ 0.84
1.52 (60") 0.912 1.216  1.76 3.30 1.06 1.39 1.34 1.75 3.22 5.86 5.89 10.64 
-0.09 ~ 1.00
1.78 (70") 1.068 1.424  2.07 3.86 1.25 1.64 1.57 2.06 3.79 6.88 6.88 12.44 
-0.11 ~ 1.18
2.03 (80") 1.218 1.624  2.37 4.41 1.43 1.87 1.80 2.35 4.33 7.87 7.83 14.18 
-0.12 ~ 1.34
2.29 (90") 1.374 1.832  2.67 4.98 1.62 2.12 2.04 2.66 4.90 8.89 8.82 15.98 
-0.14 ~ 1.51   
						

							Chapter 2 Getting Started — Setting up
ENGLISH - 35
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.46-2.72:1
0.88-1.15:1 1.11-1.45:12.67-4.84:1 4.82-8.73:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
2.54 (100") 1.524 2.032  2.97 5.53 1.80 2.35 2.26 2.95 5.45 9.88 9.77 17.72 
-0.15 ~ 1.68
3.05 (120") 1.830 2.440  3.57 6.65 2.17 2.83 2.72 3.56 6.57 11.89  11.71 21.26 
-0.18 ~ 2.01
3.81 (150") 2.286 3.048  4.47 8.31 2.72 3.54 3.41 4.45 8.23 14.88  14.60 26.53 
-0.23 ~ 2.52
5.08 (200") 3.048 4.064  5.97 11.09  3.63 4.74 4.56 5.94 11.01  19.89  19.44 35.34 
-0.31 ~ 3.35
6.35 (250") 3.810 5.080  7.47 13.87  4.55 5.93 5.70 7.44 13.79  24.90 24.27 44.15 
-0.38 ~ 4.19
7.62 (300") 4.572 6.096  8.9716.65 5.477.126.85 8.93 16.57  29.90 29.10 52.96 
-0.46 ~ 5.03
8.89 (350") 5.334 7.112 10.4719.43 6.388.318.00 10.43  19.35 34.91 33.94 61.77 
-0.53 ~ 5.87
10.16 (400") 6.096 8.128 11.9722.21 7.309.519.14 11.92  22.14  39.92 38.77 70.59 
-0.61 ~ 6.71
*1 The throw ratio is based on the value during projection with the projected image size of 2.03 m (80").
For PT -EX620 and PT -EX520
 
r When the image aspect ratio is 4:3
(Unit: m)
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.32-2.44:10.79-1.08:1
1.00-1.30:12.39-4.36:14.34-7.86:1Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.02 (40") 0.610 0.813  1.05 1.98 0.63  0.90 0.80 1.05 1.90 3.51 3.60 6.46  0.00 ~ 0.61
1.27 (50") 0.762 1.016  1.32 2.47 0.79  1.11 1.00 1.31 2.39 4.39 4.45 8.03  0.00 ~ 0.76
1.52 (60") 0.912 1.216  1.58 2.96 0.95  1.32 1.20 1.58 2.88 5.28 5.31 9.59  0.00 ~ 0.91
1.78 (70") 1.068 1.424  1.86 3.47 1.12  1.54 1.41 1.85 3.39 6.20 6.20 11.21  0.00 ~ 1.07
2.03 (80") 1.218 1.624  2.12 3.97 1.29  1.75 1.62 2.12 3.89 7.09 7.06 12.77  0.00 ~ 1.22
2.29 (90") 1.374 1.832  2.40 4.48 1.45  1.97 1.83 2.39 4.40 8.01 7.95 14.40  0.00 ~ 1.37
2.54 (100") 1.524 2.032  2.67 4.97 1.62  2.18 2.03 2.66 4.89 8.89 8.80 15.96  0.00 ~ 1.52
3.05 (120") 1.830 2.440  3.21 5.98 1.95  2.61 2.45 3.20 5.90 10.70  10.55 19.14  0.00 ~ 1.83
3.81 (150") 2.286 3.048  4.02 7.47 2.44  3.26 3.06 4.00 7.39 13.40  13.16 23.89  0.00 ~ 2.29
5.08 (200") 3.048 4.064  5.37 9.98 3.27  4.33 4.10 5.35 9.90 17.90  17.51 31.82  0.00 ~ 3.05
6.35 (250") 3.810 5.080  6.72 12.48  4.09 5.40 5.13 6.69 12.40  22.40 21.86 39.75  0.00 ~ 3.81
7.62 (300") 4.572 6.096  8.07 14.98  4.91 6.48 6.16 8.04 14.90  26.91 26.21 47.68  0.00 ~ 4.57
8.89 (350") 5.3347.112 9.4217.49 5.74 7.55 7.19 9.38 17.41  31.41 30.56 55.61  0.00 ~ 5.33
10.16 (400") 6.096 8.128 10.77 19.99  6.56 8.62 8.22 10.73  19.91 35.91 34.91 63.55  0.00 ~ 6.10
*1 The throw ratio is based on the value during projection with the projected image size of 2.03 m (80").
 
r When the image aspect ratio is 16:9
(Unit: m)
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.32-2.44:1
0.79-1.08:11.00-1.30:12.40-4.37:14.34-7.86:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
1.02 (40") 0.498 0.886  1.15 2.16 0.69 0.97 0.87 1.14 2.08 3.83 3.91 7.03 
-0.08 ~ 0.58
1.27 (50") 0.622 1.107  1.44 2.69 0.87 1.20 1.09 1.43 2.61 4.79 4.84 8.74 
-0.10 ~ 0.73
1.52 (60") 0.745 1.325  1.73 3.23 1.04 1.43 1.31 1.72 3.15 5.76 5.77 10.44 
-0.12 ~ 0.87
1.78 (70") 0.872 1.552  2.03 3.79 1.23 1.67 1.54 2.02 3.71 6.76 6.75 12.21 
-0.15 ~ 1.02
2.03 (80") 0.995 1.770  2.32 4.32 1.40 1.90 1.76 2.31 4.25 7.73 7.68 13.91 
-0.17 ~ 1.16
2.29 (90") 1.122 1.997  2.62 4.88 1.59 2.14 1.99 2.61 4.80 8.73 8.65 15.68 
-0.19 ~ 1.31
2.54 (100") 1.245 2.215  2.91 5.42 1.76 2.37 2.22 2.90 5.34 9.70 9.58 17.38 
-0.21 ~ 1.45
3.05 (120") 1.495 2.660  3.50 6.51 2.12 2.84 2.67 3.48 6.44 11.67  11.49 20.85 
-0.25 ~ 1.74   
						

							Chapter 2 Getting Started — Setting up
36 - ENGLISH
Lens type Standard 
zoom lens Optional lens
Height position (H)
Short focus 
zoom lens Short focus 
zoom lens Long focus 
zoom lens Ultra long 
focus zoom  lens
Projection Lens Model No. —
ET-ELW31ET-ELW30 ET-ELT30 ET-ELT31
Standard zoom lens / 
ET -ELW31 / ET-ELW30 
/ ET -ELT30 /  ET -ELT31
Throw ratio*11.32-2.44:1
0.79-1.08:11.00-1.30:12.40-4.37:14.34-7.86:1
Projected image size Projection distance (L)
Diagonal (SD) Height 
(SH) Width 
(SW) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT) Min.
(LW) Max.
(LT)
3.81 (150") 1.867 3.322  4.38 8.15 2.66 3.54 3.34 4.36 8.07 14.61  14.32 26.02 
-0.31 ~ 2.18
5.08 (200") 2.489 4.430  5.85 10.87  3.56 4.71 4.47 5.83 10.79  19.51 19.06 34.66 
-0.42 ~ 2.90
6.35 (250") 3.112 5.537  7.32 13.60  4.46 5.88 5.59 7.29 13.52  24.42 23.81 43.30 
-0.52 ~ 3.63
7.62 (300") 4.572 6.096  8.79 16.33  5.36 7.05 6.71 8.76 16.25  29.32 28.55 51.94 
-0.62 ~ 4.36
8.89 (350") 5.334 7.112 10.26 19.05  6.26 8.22 7.84 10.22  18.97 34.23 33.29 60.58 
-0.73 ~ 5.08
10.16 (400") 6.096 8.128 11.73 21.78  7.15 9.39 8.96 11.69  21.70  39.13 38.03 69.22 
-0.83 ~ 5.81
*1 The throw ratio is based on the value during projection with the projected image size of 2.03 m (80"). 
Formula to calculate projection distance per projection lens
To use a screen size not listed in this manual, check the screen 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.
For PT -EZ590, PT-EW650, PT-EW550
Lens type Projection Lens 
Model No. Aspect ratio
Projection distance (L) formula
Standard zoom lens —16:10
Min. (LW)
L = 1.0433 x SD 
- 0.0326
Max. (LT) L = 1.9341 x SD 
- 0.0328
16:9 Min. (LW)
L = 1.0724 x SD 
- 0.0326
Max. (LT) L = 1.9878 x SD 
- 0.0328
4:3 Min. (LW)
L = 1.1811 x SD 
- 0.0326
Max. (LT) L = 2.1895 x SD 
- 0.0328
Short focus zoom lens ET-ELW31 16:10
Min. (LW)
L = 0.6373 x SD 
- 0.0324
Max. (LT) L = 0.8295 x SD 
- 0.0344
16:9 Min. (LW)
L = 0.6550 x SD 
- 0.0324
Max. (LT) L = 0.8526 x SD 
- 0.0344
4:3 Min. (LW)
L = 0.7215 x SD 
- 0.0324
Max. (LT) L = 0.9391 x SD 
- 0.0344
Short focus zoom lens ET-ELW30 16:10
Min. (LW)
L = 0.7978 x SD 
- 0.0326
Max. (LT) L = 1.0395 x SD 
- 0.0341
16:9 Min. (LW)
L = 0.8199 x SD 
- 0.0326
Max. (LT) L = 1.0684 x SD 
- 0.0341
4:3 Min. (LW)
L = 0.9031 x SD 
- 0.0326
Max. (LT) L = 1.1768 x SD 
- 0.0341
Long focus zoom lens ET-ELT30 16:10
Min. (LW)
L = 1.9341 x SD 
- 0.1109
Max. (LT) L = 3.4825 x SD 
- 0.1364
16:9 Min. (LW)
L = 1.9879 x SD 
- 0.1109
Max. (LT) L = 3.5793 x SD 
- 0.1364
4:3 Min. (LW)
L = 2.1896 x SD 
- 0.1109
Max. (LT) L = 3.9424 x SD 
- 0.1364   
						

							Chapter 2 Getting Started — Setting up
ENGLISH - 37
Lens type Projection Lens 
Model No. Aspect ratio
Projection distance (L) formula
Ultra long focus zoom lens ET-ELT31 16:10
Min. (LW)
L = 3.3622 x SD + 0.1001
Max. (LT) L = 6.1287 x SD + 0.0940
16:9 Min. (LW)
L = 3.4557 x SD + 0.1001
Max. (LT) L = 6.2991 x SD + 0.0940
4:3 Min. (LW)
L = 3.8063 x SD + 0.1001
Max. (LT) L = 6.9382 x SD + 0.0940
For PT-EX620 and PT -EX520
Lens type Projection Lens 
Model No. Aspect ratio
Projection distance (L) formula
Standard zoom lens —4:3
Min. (LW)
L = 1.0630 x SD 
- 0.0332
Max. (LT) L = 1.9706 x SD 
- 0.0334
16:9 Min. (LW)
L = 1.1581 x SD 
- 0.0332
Max. (LT) L = 2.1469 x SD 
- 0.0334
Short focus zoom lens ET-ELW31 4:3
Min. (LW)
L = 0.6493 x SD 
- 0.0330
Max. (LT) L = 0.8452 x SD + 0.0350
16:9 Min. (LW)
L = 0.7074 x SD 
- 0.0330
Max. (LT) L = 0.9208 x SD + 0.0350
Short focus zoom lens ET-ELW30 4:3
Min. (LW)
L = 0.8128 x SD 
- 0.0333
Max. (LT) L = 1.0591 x SD 
- 0.0347
16:9 Min. (LW)
L = 0.8855 x SD 
- 0.0333
Max. (LT) L = 1.1539 x SD 
- 0.0347
Long focus zoom lens ET-ELT30 4:3
Min. (LW)
L = 1.9706 x SD 
- 0.1130
Max. (LT) L = 3.5456 x SD 
- 0.1114
16:9 Min. (LW)
L = 2.1469 x SD 
- 0.1130
Max. (LT) L = 3.8628 x SD 
- 0.1114
Ultra long focus zoom lens ET-ELT31 4:3
Min. (LW)
L = 3.4264 x SD + 0.1005
Max. (LT) L = 6.2453 x SD + 0.0941
16:9 Min. (LW)
L = 3.7330 x SD + 0.1005
Max. (LT) L = 6.8041 x SD + 0.0941
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.
Maximum adjustable range
Adjustable feet: 23 mm (29/32") each
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 26)    
						

							Chapter 2 Getting Started — Removing/attaching the projection lens
38 - ENGLISH
Removing/attaching the projection lens
Removing and attaching procedures of the projection lens are same for both standard zoom lens and optional 
lens.
Move the projection lens to the home position before replacing or removing the projection lens. (
x page 53)
Attention
 
f Replace the projection lens after turning off the projector.
 
f Do not touch the electrical contact of the projection lens. Dust or dirt may cause defective contact.
 
f Do not touch the surface of the projection lens with your bare hands.
 
f Before attaching the projection lens, remove the lens pad (only lens options models) and the lens cover attached to the projection lens.
Removing the projection lens
Remove the projection lens with the following procedure.
i)
iii)
ii)
Lens release button
Projection lens
1) With the lens release button held down, turn the projection lens counterc\
lockwise to the end and 
remove the projection lens.
Attention
 
f Store the removed projection lens where it will be free from vibration and impact.
 
f If you cannot release the lock with lens release button held down, it indicates that the lens release button fixing screw is installed. Please 
remove the lens release button fixing screw. For details, refer to “When attaching the lens release button fixing screw”. (
x page 39)
Attaching the projection lens
Attach the projection lens with the following procedure.
Guide groove
Projection 
lens guide
Projection lens
Fig.1 Fig.2
Guide groove
Projection 
lens guide
Red marks
1) 
Align the red mark on the projection lens with the red mark on the proje\
ctor, and insert the projection 
lens to the end. (Fig. 1)
2)  Turn the projection lens clockwise until it clicks. (Fig. 2)
Attention
 
f Turn the projection lens counterclockwise to confirm that it does not come out.  
						

							Chapter 2 Getting Started — Removing/attaching the projection lens
ENGLISH - 39
When attaching the lens release button fixing screw 
Attach the lens antitheft screw with the following procedures.
Lens release button fixing screw
Lens release button fixing screw hole
1) Place the projector upside down on a soft cloth.
2)  Use a Phillips screwdriver to firmly tighten the lens release button fix\
ing screw into the lens release 
button fixing screw hole.
 
f The projection lens cannot be removed with the lens release button held down.    
						

							Chapter 2 Getting Started — Connecting
40 - ENGLISH
Connecting
Before connecting
 
f Before connecting, carefully read the operating instructions for the external device to be connected.
 
f Turn off the power of all devices before connecting cables.
 
f Take note of the following points before connecting the cables. Failure to do so may result in malfunctions.
 
g When connecting a cable to a device connected to the projector or the projector itself, touch any nearby 
metallic objects to eliminate static electricity from your body before p\
erforming work.
 
g Do not use unnecessarily long cables to connect a device to the projector or to the projector body
. The longer 
the cable, the more susceptible to noise it becomes. Since using a cable while it is wound makes it act like an 
antenna, it is more susceptible to noise.
 
g When connecting cables, connect GND first, then insert the connecting terminal of the connecting device in a 
straight manner.
 
f Acquire any connection cable necessary to connect the external device to the system that is neither supplied 
with the device nor available as an option.
 
f If video signals from video equipment contain too much jitter, the images on the screen may wobble. In this 
case, a time base corrector (TBC) must be connected.
 
f The projector accepts video signals, Y/C signals, YC
BCR/YPBPR signals, analog RGB signals (synchronization 
signals are TTL level), and digital signals.
 
f Some computer models or graphics cards are not compatible with the projector
.
 
f Use a cable compensator when you connect devices to the projector using long cables. Otherwise the image 
may not display properly.
 
f Refer to “List of compatible signals” (
x page 156) for the types of video signals that can be used with the 
projector.
 terminal pin assignments and signal names
Outside view Pin No.Signal name Pin No.Signal name
(10)
(6) (11)
(15)
(1) (5)
(1) R/PR(9) +5 V
(2) G/Y (10)GND
(3) B/P
B(11) GND
(4) ―(12)DDC data
(5) GND (13)HD/SYNC
(6) GND (14)VD
(7) GND (15)DDC clock
(8) GND
 terminal pin assignments and signal names
Outside view Pin No.Signal name Pin No.Signal name
(10)
(6) (11)
(15)
(1) (5)
(1) R/PR(9) ―
(2) G/Y (10)GND
(3) B/P
B(11) GND
(4) ―(12) ―
(5) GND (13)HD/SYNC
(6) GND (14)VD
(7) GND (15) ―
(8) GND