Panasonic ET-ELW21C User manual

ENGLISH
Commercial Use
Model No. ET-ELW21C
ET-ELW20C
ET-ELT22C
ET-ELT23C
TQZJ445-4
Projection Lens
Operating Instructions
Thank you for purchasing this Panasonic product.
■To ensure correct use of this lens, please read the operating instructions supplied
with the lens and the projector carefully.
■Before using this product, be sure to read “Read this rst!” (Page 3).
■Please save this manual for future use.
ET-ELW21C
ET-ELT22C
ET-ELW20C
ET-ELT23C
Read before use
This document is intended for the various projection lenses that can be attached to
and used in conjunction with Panasonic projectors.
For Model No. and model names, refer to the product list (Page 4).

2-ENGLISH
Read this rst! ......................................................................................3
Before Use.............................................................................................4
Attaching / removing the projection lens...........................................4
Before replacing the projection lens........................................................ 4
Attaching the Lens / Detaching the Lens................................................. 5
Making Adjustments ............................................................................5
Correcting the Focus............................................................................... 5
Projection relationships.......................................................................7
Lens shift ranges..................................................................................8
Specications .....................................................................................10
Dimensions .........................................................................................10
P rojected image size and Projection distance....... 附表 / Appendix 1
█ Contents
P rojected image size and Projection distance....... 附表 / Appendix 1

ENGLISH-3
Read this rst! Always follow these precautions
WARNING:
Do not look at or place your skin into the light emitted from the lens while the
projector is being used.
Doing so can cause burns or loss of sight.
zStrong light is emitted from the projector’s lens. Do not look at or place your hands
directly into this light.
zTurn off the power when moving away from the projection lens or projector.
Do not project an image with the lens cover attached.
zDoing so can cause re.
Do not allow children to reach the spacer.
zThe spacers can cause personal injury if swallowed.
zIf the spacers are swallowed, seek medical advice immediately.
CAUTION:
Before replacing the projection lens, be sure to turn off the power and
disconnect the power plug from the wall outlet.
zUnexpected projection of light may cause injury to eyes.
zReplacing the projection lens without removing the power plug may result in electric
shock.
Do not stand in front of the lens while the projector is being used.
Doing so can cause damage and burns to clothing.
zStrong light is emitted from the projector’s lens.
Do not place objects in front of the lens while the projector is being used.
Doing so can cause re, damage to the object, or malfunction of the lens and
projector.
zStrong light is emitted from the projector’s lens.
Do not open the desiccant bag. Do not eat the contents.
Inadvertently ingesting desiccant could be harmful.
zIf the desiccant gets into your eyes or mouth, immediately rinse with plenty of water
and seek medical attention.
zKeep desiccant out of the reach of children.

4-ENGLISH
■Product list
The product names and model numbers of the projection lenses covered by this manual
are as follows.
Product name Model number
Fixed focus lens ET-ELW21C
Zoom lens ET-ELW20C / ET-ELT22C / ET-ELT23C
■Supported projectors
PT-SMZ77C / PT-SMW73C / PT-SMZ67C / PT-SMW63C / PT-SMZ57C / PT-SMW53C /
PT-SLZ77C / PT-SLW83C / PT-SLX80C / PT-SLX75C
Note
zThis manual omits the alphabets at the end of projector model numbers.
zModels other than the above may also be supported. Refer to the operating instructions of
the projector you are using.
■Supplied Accessories
Make sure that the following has been provided.
Part name Appearance
Lens cover
1 each for front and rear
Spacer
(T0SAS0001--) (Colors: black, cream, clear) 4 each
zThe product is delivered with a
lens cap attached.
zThe shape and size of the lens
caps are different for each product.
Before replacing the projection lens
Return the projection lens to the home position before replacing or removing it.
For details on how to return the lens to the home position, refer to the operating
instructions of the projector.
Attention
zMake sure that the projector power supply is switched off before attaching or detaching the
projection lens.
zAfter removing the projection lens, store it safely away from vibration or impacts.
zDo not touch the electric contact points of the projection lens with your fingers. Dust and dirt
on the contacts may cause contact malfunctions, while static electricity may damage the unit.
Attaching / removing the projection lens
Before Use

ENGLISH-5
Attaching / removing the projection lens (continued)
Making Adjustments
Correcting the Focus
When the projection lens is attached to the projector and images are being projected
onto the screen, the peripheral focus may be out of focus in some localized areas.
In such cases, use the supplied spacers to correct the focus of these areas, and perform
adjustments so that the entire image is even.
■Relationship between lens orientation and screen focus
If the projection lens is tilted with respect to the plane of the screen, uneven focus will
result. For example, when the front side of the lens (screen side) is tilted downward as
shown in the figure below (direction of the dotted arrow), the upper part of the screen
will be tilted backward and the lower part of the screen will be tilted forward.
Projection lens
Image formation surface
Screen surface versus focal point
■Procedure for correcting the focus
Attention
zTurn off the projector before removing the projection lens.
Note
zFocus correction requires some technical skill. Be sure to have a person with knowledge of
projectors or a service technician to perform adjustments.
zDo not touch the surface of the lens with bare hands. Finger prints and dirt on the surface
of the lens will be magnified by the lens and lower the quality of the projected image. Place
the supplied lens cover on the zoom lens when the projector is not in use.
zThe lens is made of glass. The lens could be damaged if brought into contact with or
rubbed against hard objects. Handle the lens carefully.
zUse a clean, soft and dry cloth to wipe away dust and dirt from the projection lens.
Do not use fl uffy cloths containing oil, water or dust for cleaning. The lens is easily
damaged, so do not apply excessive pressure when wiping it.
Attaching the Lens / Detaching the Lens
For details on attaching or removing the projection lens, refer to the operating
instructions for the projector.

6-ENGLISH
Making Adjustments (continued)
D
C
A
B
Fig. 1
AA
投写レンズ
ネジ
スペーサー
レンズマウンター
D
D
B
C
Fig. 2
Screws
Projection lens
Lens mounter
Spacers
1) Install the projector in the installation location, and turn it on to project an image.
2) Move the lens to its home position.
3) Operate the projector to shift the focus of the entire projected image toward
the front of the screen.
4) Operate the projector to shift the focus toward the screen a little bit at a time until
one of the areas A to D in Fig. 1 just comes into focus on the screen, and then stop.
zIn this state, the “just focus points” of the unfocused areas are positioned just in front of
the screen. The distance between this position and the screen is the correction distance.
5) Insert the spacers between the body of the projector and the lens mounter, as
shown in Fig. 2.
zRemove the lens mounter from the projector, and insert the spacers in the positions
that correspond to the unfocused areas.
zThe “just focus points” of the areas for which you inserted spacers will be corrected
toward the rear of the screen.
zMake sure the adhesive surfaces of the spacers face the lens mounter when inserting them.
zThe correction distance is determined by the thickness and quantity of spacers
inserted. Insert spacers according to the correction distance.
(The unit for correction distances derived from the formulas in the following table is millimeters.)
Spacer Color Thickness Correction distance
during projected image size SD (m)
Clear 0.1 mm SD × SD × 51.5
Black 0.2 mm SD × SD × 103
Cream 0.3 mm SD × SD × 154.5
Correction distance guide: When the projected image size is 1.52 m (60 in.), the cor-
rected distance when one 0.1 mm thick spacer is inserted is 120 mm.
Attention
zInstalling the lens mounter, be careful not to put wiring between the lens mounter and the
projector unit.

ENGLISH-7
Projection relationships
The dimensional relationship between the screen and the projector is shown below.
■Dimensional relationship diagram
L (LW/LT)
L (LW/LT)
SW SH
H
SH
SW
SD
L1
L1
Screen
Projected image
Note
zThis diagram assumes that the size and position of the projected image will be adjusted so
that the image fills the entire screen.
zThis illustration is not drawn to scale.
L Projection distance
LW Minimum distance
LT Maximum distance
L1 Lens protrusion dimension
SH Image height
H Distance from the lens center to the lower edge of the
projected image
SW Image width
SD Projected image size
zL1 dimensions (approximate values) (Unit: m)
Projector model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
PT-SMZ77C / PT-SMW73C / PT-SMZ67C /
PT-SMW63C / PT-SMZ57C / PT-SMW53C 0.005 0.035 0.036 0.032
PT-SLZ77C / PT-SLW83C /
PT-SLX80C / PT-SLX75C 0.050 0.080 0.081 0.080
Note
zThe illustrations of projectors in this manual are for informational purposes only and do not
represent a specific projector model. Configurations may vary with the model.

8-ENGLISH
Projection relationships (continued)
Attention
zTo prevent blocking of the intake and exhaust vents, maintain clearances from walls and
objects of at least 1 000 mm (3'3") for the exhaust vent and at least 500 mm (1'8") for the
intake vent.
zAvoid setting up in places which are subject to sudden temperature changes, such as near
an air conditioner or lighting equipment (studio lamps, etc.).
■Dimensional relationship
For details on the projection distance (L), refer to “Projected image size and Projection
distance” and “Projection distance formulas” in the Appendix.
Note
zFor details on “Projected image size and Projection distance” for projector models other
than PT-SMZ77C / PT-SMW73C / PT-SMZ67C / PT-SMW63C / PT-SMZ57C /
PT-SMW53C / PT-SLZ77C / PT-SLW83C / PT-SLX80C / PT-SLX75C, refer to “Setting up”
in the operating instructions of the projector.
Perform the lens position shift within the adjustment range.
Perform lens shift adjustment within the ranges shown in the following illustrations.
Moving the lens outside of the adjustment ranges may alter the focus. The focus may
change when the lens position is shifted out of the adjustment range. This is because
the movement of the lens is restricted to protect the optical parts. Projection position
can be adjusted with the optical axis shift based on the home position in the respective
range.
Lens model ET-ELW20C / ET-ELT22C / ET-ELT23C
PT-SMZ77C / PT-SMW73C /
PT-SMZ67C / PT-SMW63C /
PT-SMZ57C / PT-SMW53C
Image width H
Standard projection position
Image height V
0.35 H
0.30 H 0.30 H
0.35 H
0.67 V 0.67 V
0.19 V0.19 V
Lens shift ranges

ENGLISH-9
Lens shift ranges (continued)
Lens model ET-ELW20C / ET-ELT22C / ET-ELT23C
PT-SLZ77C / PT-SLW83C
0.6 V
Image width H
0.1 H0.1 H
Image height V
0.6 V
Standard projection position
PT-SLX80C / PT-SLX75C
0.5 V
Image width H
0.1 H0.1 H
Image height V
0.5 V
Standard projection position
Note
zLens shifting cannot be performed when a fixed-focus lens (model no.: ET-ELW21C) is
attached.
zThe home position of the projector a point of origin position for the lens shift (i.e., vertical
and horizontal positions of the lens) based on the results of lens calibration. It is not the
optical center position of the screen.

10-ENGLISH
Dimensions
(Unit: mm)
Model number Dimensions
ET-ELW21C
166 (6-17/32")
φ108 (4-1/4")
φ102 (4-1/32")
Specications
Check the specifications of each projection lens, and use the appropriate lens for your
intended use.
Model No. ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
Lens Type Short fixed lens Short zoom lens Long zoom lens Ultra long
zoom lens
F value 2.0 1.8 to 2.3 1.8 to 2.3 1.8 to 2.3
Focal Length (f) 13.05 mm 20.4 to 27.6 mm 45.6 to 73.8 mm 73.9 to 117.1 mm
Dimensions*1
Width 108 mm (4-1/4") 116 mm (4-9/16") 108 mm (4-1/4") 108 mm (4-1/4")
Height 108 mm (4-1/4") 116 mm (4-9/16") 108 mm (4-1/4") 108 mm (4-1/4")
Depth 166 mm (6-17/32") 196 mm (7-23/32") 197 mm (7-3/4") 196 mm (7-23/32")
Net Weight 1.08 k](2.38 lbs) 1.20 k](2.65 lbs) 1.18 k](2.60 lbs) 1.20 k](2.65 lbs)
*1: Excluding protrusions.

ENGLISH-11
Dimensions (continued)
Model number Dimensions
ET-ELW20C
196 (7-23/32"; fully extended)
φ116 (6-17/32")
ET-ELT22C
197 (7-24/32"; fully extended)
φ108 (4-1/4")
φ88.5 (3-15/32")
ET-ELT23C
196 (7-23/32"; fully extended)
φ108 (4-1/4")
φ88.5 (3-15/32")

:
:
https://panasonic.cn/
: :
©
4
日本福冈县福冈市博多区美野岛四丁目1番62号
2022
松下互联株式会社
2022
版权所有 HS0412AM4042 -PS
Printed in Japan
Name and quantity of hazardous substances contained in the product
Parts Hazardous substances
Pb Hg Cd Cr (VI) PBB PBDE
Printed circuit boards ×○○○○○
Projection lens ○○○○○○
Other accessories ○○○○○○
This table is prepared in accordance with the provisions of SJ/T 11364.
○: The amount of hazardous substances included in all homogeneous materials for the relevant
part does not exceed the limit specified in GB/T 26572.
×: The amount of hazardous substances included in all homogeneous materials for the relevant
part exceeds the limit specified in GB/T 26572.

1
附表 / Appendix
附表 / Appendix
■投影关系尺寸
■Dimensional relationship
屏幕和投影机之间的尺寸关系显示如下。
The dimensional relationship between the screen and the projector is shown below.
投影画面
Projected image
屏幕 / Screen
L (LW/LT)
L (LW/LT)
SW SH
H
SH
SW
SD
L投影距离 / Projection distance 離
LW 最小距离 / Minimum distance 離
LT 最大距离 / Maximum distance 離
SH 画面高度 / Image height
H镜头中心到投影画面下边缘的距离
Distance from the lens center to the lower edge of the projected image
SW 画面宽度 / Image width
SD 投影画面尺寸 / Projected image size

2附表 / Appendix
z投影画面尺寸和投影距离
zProjected image size and Projection distance
提示
z如果所使用投影机的型号在本说明书中未记载，请参阅投影机使用说明书的“设置”章
节。
此外，请务必检查屏幕的对焦尺寸 SD (m)，并使用“投影距离计算方法”（ ☞ ☞ 附表，
第12 页）确定投影距离 (L)。
Note
zWhen using projector models other than the following, refer to “Setting up” in the
operating instructions of the projector.
In addition, be sure to check the diagonal screen size SD (m), and use the “Projection
distance formulas” ( ☞ ☞ Appendix page 12) to determine the projection distance
(L).
投影机 / Projectors
PT-SMZ77C / PT-SMZ67C / PT-SMZ57C /
PT-SLZ77C / PT-SMW73C / PT-SMW63C /
PT-SMW53C / PT-SLW83C / PT-SLX80C / PT-SLX75C
下表中的尺寸可能略有误差。
在下表的计算公式中，句点代表小数点。
The dimensions of the following table contain a slight error.
Periods are used to represent decimal points in the calculation formulas in the following
table.

3
附表 / Appendix
zPT-SMZ77C / PT-SMZ67C / PT-SMZ57C / PT-SLZ77C
当屏幕宽高比为 16:10 时
When the screen aspect ratio is 16:10
(单位 / Unit : m)
镜头类型 / Lens type 定焦镜头 /
Fixed focus lens 变焦镜头 / Zoom lens
镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
投射率 / Throw ratio 0.764:1 1.21 - 1.66:1 2.72 - 4.48:1 4.44 - 7.12:1
SD SH SW L（固定值 / Fixed）LW LT LW LT LW LT
1.016 (40") 0.538 0.862 0.63 1.02 1.41 2.29 3.81 3.72 6.03
1.270 (50") 0.673 1.077 0.80 1.29 1.77 2.89 4.79 4.70 7.59
1.524 (60") 0.808 1.292 0.97 1.55 2.14 3.49 5.77 5.68 9.15
1.778 (70") 0.942 1.508 1.14 1.82 2.50 4.09 6.75 6.66 10.71
2.032 (80") 1.077 1.723 1.32 2.09 2.87 4.69 7.73 7.64 12.27
2.286 (90") 1.212 1.939 1.49 2.36 3.23 5.30 8.71 8.63 13.83
2.540 (100") 1.346 2.154 1.66 2.63 3.60 5.90 9.69 9.61 15.39
3.048 (120") 1.615 2.585 2.00 3.16 4.33 7.10 11.65 11.57 18.51
3.810 (150") 2.019 3.231 2.52 3.97 5.42 8.90 14.59 14.52 23.19
5.080 (200") 2.692 4.308 3.38 5.31 7.25 11.91 19.49 19.43 30.99
6.350 (250") 3.365 5.385 4.24 6.65 9.07 14.91 24.39 24.34 38.79
7.620 (300") 4.039 6.462 5.10 7.99 10.90 17.92 29.29 29.25 46.59
8.890 (350") 4.712 7.539 5.95 9.33 12.73 20.92 34.19 34.16 54.39
10.160 (400") 5.385 8.616 6.81 10.67 14.55 23.93 39.09 39.07 62.19
镜头型号 / Lens model
ET-ELW21C
（固定值 / Fixed）
ET-ELW20C / ET-ELT22C / ET-ELT23C
投影机型号 / Projector model
PT-SMZ77C /
PT-SMZ67C /
PT-SMZ57C
PT-SLZ77C
SD SH SW H
1.016 (40") 0.538 0.862 0.27 -0.09 - 0.63 -0.05 - 0.59
1.270 (50") 0.673 1.077 0.34 -0.11 - 0.79 -0.07 - 0.74
1.524 (60") 0.808 1.292 0.40 -0.14 - 0.95 -0.08 - 0.89
1.778 (70") 0.942 1.508 0.47 -0.16 - 1.10 -0.09 - 1.04
2.032 (80") 1.077 1.723 0.54 -0.18 - 1.26 -0.11 - 1.18
2.286 (90") 1.212 1.939 0.61 -0.21 - 1.42 -0.12 - 1.33
2.540 (100") 1.346 2.154 0.67 -0.23 - 1.58 -0.13 - 1.48
3.048 (120") 1.615 2.585 0.81 -0.27 - 1.89 -0.16 - 1.78
3.810 (150") 2.019 3.231 1.01 -0.34 - 2.36 -0.20 - 2.22
5.080 (200") 2.692 4.308 1.35 -0.46 - 3.15 -0.27 - 2.96
6.350 (250") 3.365 5.385 1.68 -0.57 - 3.94 -0.34 - 3.70
7.620 (300") 4.039 6.462 2.02 -0.69 - 4.73 -0.40 - 4.44
8.890 (350") 4.712 7.539 2.36 -0.80 - 5.51 -0.47 - 5.18
10.160 (400") 5.385 8.616 2.69 -0.92 - 6.30 -0.54 - 5.92

4附表 / Appendix
当屏幕宽高比为 16:9 时
When the screen aspect ratio is 16:9
(单位 / Unit : m)
镜头类型 / Lens type 定焦镜头 /
Fixed focus lens 变焦镜头 / Zoom lens
镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
投射率 / Throw ratio 0.765:1 1.21 - 1.66:1 2.73 - 4.49:1 4.44 - 7.12:1
SD SH SW L（固定值 / Fixed）LW LT LW LT LW LT
1.016 (40") 0.498 0.886 0.65 1.05 1.45 2.36 3.92 3.83 6.20
1.270 (50") 0.623 1.107 0.83 1.32 1.82 2.97 4.92 4.83 7.81
1.524 (60") 0.747 1.328 1.00 1.60 2.20 3.59 5.93 5.84 9.41
1.778 (70") 0.872 1.550 1.18 1.87 2.57 4.21 6.94 6.85 11.01
2.032 (80") 0.996 1.771 1.35 2.15 2.95 4.83 7.95 7.86 12.62
2.286 (90") 1.121 1.992 1.53 2.43 3.32 5.45 8.95 8.87 14.22
2.540 (100") 1.245 2.214 1.71 2.70 3.70 6.06 9.96 9.88 15.82
3.048 (120") 1.494 2.657 2.06 3.25 4.45 7.30 11.97 11.90 19.03
3.810 (150") 1.868 3.321 2.59 4.08 5.58 9.15 15.00 14.93 23.84
5.080 (200") 2.491 4.428 3.47 5.46 7.45 12.24 20.03 19.98 31.86
6.350 (250") 3.113 5.535 4.36 6.83 9.33 15.33 25.07 25.02 39.87
7.620 (300") 3.736 6.641 5.24 8.21 11.20 18.42 30.10 30.07 47.89
8.890 (350") 4.358 7.748 6.12 9.59 13.08 21.51 35.14 35.12 55.91
10.160 (400") 4.981 8.855 7.00 10.97 14.96 24.60 40.18 40.17 63.92
镜头型号 / Lens model
ET-ELW21C
（固定值 / Fixed）
ET-ELW20C / ET-ELT22C / ET-ELT23C
投影机型号 / Projector model
PT-SMZ77C /
PT-SMZ67C /
PT-SMZ57C
PT-SLZ77C
SD SH SW H
1.016 (40") 0.498 0.886 0.25 -0.12 - 0.62 -0.05 - 0.55
1.270 (50") 0.623 1.107 0.31 -0.15 - 0.77 -0.06 - 0.68
1.524 (60") 0.747 1.328 0.37 -0.18 - 0.93 -0.07 - 0.82
1.778 (70") 0.872 1.550 0.44 -0.21 - 1.08 -0.09 - 0.96
2.032 (80") 0.996 1.771 0.50 -0.24 - 1.24 -0.10 - 1.10
2.286 (90") 1.121 1.992 0.56 -0.27 - 1.39 -0.11 - 1.23
2.540 (100") 1.245 2.214 0.62 -0.30 - 1.55 -0.12 - 1.37
3.048 (120") 1.494 2.657 0.75 -0.37 - 1.86 -0.15 - 1.64
3.810 (150") 1.868 3.321 0.93 -0.46 - 2.32 -0.19 - 2.05
5.080 (200") 2.491 4.428 1.25 -0.61 - 3.10 -0.25 - 2.74
6.350 (250") 3.113 5.535 1.56 -0.76 - 3.87 -0.31 - 3.42
7.620 (300") 3.736 6.641 1.87 -0.91 - 4.65 -0.37 - 4.11
8.890 (350") 4.358 7.748 2.18 -1.07 - 5.42 -0.44 - 4.79
10.160 (400") 4.981 8.855 2.49 -1.22 - 6.20 -0.50 - 5.48

5
附表 / Appendix
当屏幕宽高比为 4:3 时
When the screen aspect ratio is 4:3
(单位 / Unit : m)
镜头类型 / Lens type 定焦镜头 /
Fixed focus lens 变焦镜头 / Zoom lens
镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
投射率 / Throw ratio 0.922:1 1.46 - 2.00:1 3.28 - 5.39:1 5.34 - 8.56:1
SD SH SW L（固定值 / Fixed）LW LT LW LT LW LT
1.016 (40") 0.610 0.813 0.72 1.16 1.60 2.61 4.33 4.24 6.85
1.270 (50") 0.762 1.016 0.91 1.46 2.01 3.29 5.43 5.35 8.62
1.524 (60") 0.914 1.219 1.11 1.77 2.43 3.97 6.54 6.46 10.39
1.778 (70") 1.067 1.422 1.30 2.07 2.84 4.65 7.65 7.57 12.15
2.032 (80") 1.219 1.626 1.50 2.37 3.25 5.33 8.76 8.68 13.92
2.286 (90") 1.372 1.829 1.69 2.68 3.67 6.01 9.87 9.79 15.68
2.540 (100") 1.524 2.032 1.89 2.98 4.08 6.69 10.98 10.91 17.45
3.048 (120") 1.829 2.438 2.28 3.59 4.91 8.05 13.20 13.13 20.98
3.810 (150") 2.286 3.048 2.86 4.50 6.15 10.09 16.53 16.47 26.28
5.080 (200") 3.048 4.064 3.83 6.02 8.21 13.49 22.08 22.03 35.11
6.350 (250") 3.810 5.080 4.80 7.53 10.28 16.90 27.62 27.58 43.94
7.620 (300") 4.572 6.096 5.78 9.05 12.35 20.30 33.17 33.14 52.77
8.890 (350") 5.334 7.112 6.75 10.57 14.41 23.70 38.72 38.70 61.60
10.160 (400") 6.096 8.128 7.72 12.09 16.48 27.10 44.27 44.26 70.43
镜头型号 / Lens model
ET-ELW21C
（固定值 / Fixed）
ET-ELW20C / ET-ELT22C / ET-ELT23C
投影机型号 / Projector model
PT-SMZ77C /
PT-SMZ67C /
PT-SMZ57C
PT-SLZ77C
SD SH SW H
1.016 (40") 0.610 0.813 0.30 -0.10 - 0.71 -0.06 - 0.67
1.270 (50") 0.762 1.016 0.38 -0.13 - 0.89 -0.08 - 0.84
1.524 (60") 0.914 1.219 0.46 -0.16 - 1.07 -0.09 - 1.01
1.778 (70") 1.067 1.422 0.53 -0.18 - 1.25 -0.11 - 1.17
2.032 (80") 1.219 1.626 0.61 -0.21 - 1.43 -0.12 - 1.34
2.286 (90") 1.372 1.829 0.69 -0.23 - 1.60 -0.14 - 1.51
2.540 (100") 1.524 2.032 0.76 -0.26 - 1.78 -0.15 - 1.68
3.048 (120") 1.829 2.438 0.91 -0.31 - 2.14 -0.18 - 2.01
3.810 (150") 2.286 3.048 1.14 -0.39 - 2.67 -0.23 - 2.51
5.080 (200") 3.048 4.064 1.52 -0.52 - 3.57 -0.30 - 3.35
6.350 (250") 3.810 5.080 1.91 -0.65 - 4.46 -0.38 - 4.19
7.620 (300") 4.572 6.096 2.29 -0.78 - 5.35 -0.46 - 5.03
8.890 (350") 5.334 7.112 2.67 -0.91 - 6.24 -0.53 - 5.87
10.160 (400") 6.096 8.128 3.05 -1.04 - 7.13 -0.61 - 6.71

6附表 / Appendix
zPT-SMW73C / PT-SMW63C / PT-SMW53C / PT-SLW83C
当屏幕宽高比为 16:10 时
When the screen aspect ratio is 16:10
(单位 / Unit : m)
镜头类型 / Lens type 定焦镜头 /
Fixed focus lens 变焦镜头 / Zoom lens
镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
投射率 / Throw ratio 0.774:1 1.23 - 1.68:1 2.76 - 4.54:1 4.49 - 7.21:1
SD SH SW L（固定值 / Fixed）LW LT LW LT LW LT
1.016 (40") 0.538 0.862 0.64 1.03 1.42 2.32 3.85 3.76 6.10
1.270 (50") 0.673 1.077 0.81 1.30 1.79 2.93 4.85 4.76 7.68
1.524 (60") 0.808 1.292 0.99 1.58 2.16 3.54 5.84 5.75 9.26
1.778 (70") 0.942 1.508 1.16 1.85 2.53 4.14 6.83 6.75 10.84
2.032 (80") 1.077 1.723 1.33 2.12 2.90 4.75 7.82 7.74 12.42
2.286 (90") 1.212 1.939 1.51 2.39 3.27 5.36 8.81 8.73 14.00
2.540 (100") 1.346 2.154 1.68 2.66 3.64 5.97 9.80 9.73 15.58
3.048 (120") 1.615 2.585 2.03 3.21 4.38 7.19 11.79 11.72 18.73
3.810 (150") 2.019 3.231 2.55 4.02 5.48 9.01 14.76 14.70 23.47
5.080 (200") 2.692 4.308 3.42 5.38 7.33 12.05 19.72 19.67 31.36
6.350 (250") 3.365 5.385 4.29 6.74 9.17 15.10 24.68 24.64 39.26
7.620 (300") 4.039 6.462 5.16 8.10 11.02 18.14 29.64 29.61 47.15
8.890 (350") 4.712 7.539 6.03 9.46 12.86 21.18 34.59 34.58 55.04
10.160 (400") 5.385 8.616 6.89 10.82 14.71 24.22 39.55 39.55 62.94
镜头型号 / Lens model
ET-ELW21C
（固定值 / Fixed）
ET-ELW20C / ET-ELT22C / ET-ELT23C
投影机型号 / Projector model
PT-SMW73C /
PT-SMW63C /
PT-SMW53C
PT-SLW83C
SD SH SW H
1.016 (40") 0.538 0.862 0.27 -0.09 - 0.63 -0.05 - 0.59
1.270 (50") 0.673 1.077 0.34 -0.11 - 0.79 -0.07 - 0.74
1.524 (60") 0.808 1.292 0.40 -0.14 - 0.95 -0.08 - 0.89
1.778 (70") 0.942 1.508 0.47 -0.16 - 1.10 -0.09 - 1.04
2.032 (80") 1.077 1.723 0.54 -0.18 - 1.26 -0.11 - 1.18
2.286 (90") 1.212 1.939 0.61 -0.21 - 1.42 -0.12 - 1.33
2.540 (100") 1.346 2.154 0.67 -0.23 - 1.58 -0.13 - 1.48
3.048 (120") 1.615 2.585 0.81 -0.27 - 1.89 -0.16 - 1.78
3.810 (150") 2.019 3.231 1.01 -0.34 - 2.36 -0.20 - 2.22
5.080 (200") 2.692 4.308 1.35 -0.46 - 3.15 -0.27 - 2.96
6.350 (250") 3.365 5.385 1.68 -0.57 - 3.94 -0.34 - 3.70
7.620 (300") 4.039 6.462 2.02 -0.69 - 4.73 -0.40 - 4.44
8.890 (350") 4.712 7.539 2.36 -0.80 - 5.51 -0.47 - 5.18
10.160 (400") 5.385 8.616 2.69 -0.92 - 6.30 -0.54 - 5.92

7
附表 / Appendix
当屏幕宽高比为 16:9 时
When the screen aspect ratio is 16:9
(单位 / Unit : m)
镜头类型 / Lens type 定焦镜头 /
Fixed focus lens 变焦镜头 / Zoom lens
镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
投射率 / Throw ratio 0.775:1 1.23 - 1.68:1 2.76 - 4.54:1 4.50 - 7.21:1
SD SH SW L（固定值 / Fixed）LW LT LW LT LW LT
1.016 (40") 0.498 0.886 0.66 1.06 1.46 2.39 3.96 3.87 6.28
1.270 (50") 0.623 1.107 0.84 1.34 1.84 3.01 4.98 4.90 7.90
1.524 (60") 0.747 1.328 1.01 1.62 2.22 3.64 6.00 5.92 9.52
1.778 (70") 0.872 1.550 1.19 1.90 2.60 4.26 7.02 6.94 11.15
2.032 (80") 0.996 1.771 1.37 2.18 2.98 4.89 8.04 7.96 12.77
2.286 (90") 1.121 1.992 1.55 2.46 3.36 5.51 9.06 8.98 14.39
2.540 (100") 1.245 2.214 1.73 2.74 3.74 6.14 10.08 10.00 16.01
3.048 (120") 1.494 2.657 2.09 3.30 4.50 7.39 12.12 12.05 19.26
3.810 (150") 1.868 3.321 2.62 4.14 5.64 9.27 15.18 15.11 24.13
5.080 (200") 2.491 4.428 3.52 5.53 7.53 12.39 20.27 20.22 32.24
6.350 (250") 3.113 5.535 4.41 6.93 9.43 15.52 25.37 25.33 40.35
7.620 (300") 3.736 6.641 5.30 8.33 11.33 18.64 30.46 30.44 48.47
8.890 (350") 4.358 7.748 6.19 9.72 13.22 21.77 35.56 35.55 56.58
10.160 (400") 4.981 8.855 7.09 11.12 15.12 24.90 40.66 40.66 64.69
镜头型号 / Lens model
ET-ELW21C
（固定值 / Fixed）
ET-ELW20C / ET-ELT22C / ET-ELT23C
投影机型号 / Projector model
PT-SMW73C /
PT-SMW63C /
PT-SMW53C
PT-SLW83C
SD SH SW H
1.016 (40") 0.498 0.886 0.25 -0.12 - 0.62 -0.05 - 0.55
1.270 (50") 0.623 1.107 0.31 -0.15 - 0.77 -0.06 - 0.68
1.524 (60") 0.747 1.328 0.37 -0.18 - 0.93 -0.07 - 0.82
1.778 (70") 0.872 1.550 0.44 -0.21 - 1.08 -0.09 - 0.96
2.032 (80") 0.996 1.771 0.50 -0.24 - 1.24 -0.10 - 1.10
2.286 (90") 1.121 1.992 0.56 -0.27 - 1.39 -0.11 - 1.23
2.540 (100") 1.245 2.214 0.62 -0.30 - 1.55 -0.12 - 1.37
3.048 (120") 1.494 2.657 0.75 -0.37 - 1.86 -0.15 - 1.64
3.810 (150") 1.868 3.321 0.93 -0.46 - 2.32 -0.19 - 2.05
5.080 (200") 2.491 4.428 1.25 -0.61 - 3.10 -0.25 - 2.74
6.350 (250") 3.113 5.535 1.56 -0.76 - 3.87 -0.31 - 3.42
7.620 (300") 3.736 6.641 1.87 -0.91 - 4.65 -0.37 - 4.11
8.890 (350") 4.358 7.748 2.18 -1.07 - 5.42 -0.44 - 4.79
10.160 (400") 4.981 8.855 2.49 -1.22 - 6.20 -0.50 - 5.48

8附表 / Appendix
当屏幕宽高比为 4:3 时
When the screen aspect ratio is 4:3
(单位 / Unit : m)
镜头类型 / Lens type 定焦镜头 /
Fixed focus lens 变焦镜头 / Zoom lens
镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C
投射率 / Throw ratio 0.933:1 1.48 - 2.02:1 3.32 - 5.46:1 5.41 - 8.67:1
SD SH SW L（固定值 / Fixed）LW LT LW LT LW LT
1.016 (40") 0.610 0.813 0.73 1.18 1.62 2.64 4.38 4.29 6.94
1.270 (50") 0.762 1.016 0.93 1.48 2.04 3.33 5.50 5.41 8.73
1.524 (60") 0.914 1.219 1.12 1.79 2.45 4.02 6.62 6.54 10.51
1.778 (70") 1.067 1.422 1.32 2.10 2.87 4.71 7.75 7.67 12.30
2.032 (80") 1.219 1.626 1.52 2.41 3.29 5.40 8.87 8.79 14.09
2.286 (90") 1.372 1.829 1.71 2.71 3.71 6.08 9.99 9.92 15.87
2.540 (100") 1.524 2.032 1.91 3.02 4.12 6.77 11.11 11.04 17.66
3.048 (120") 1.829 2.438 2.30 3.64 4.96 8.15 13.36 13.29 21.24
3.810 (150") 2.286 3.048 2.89 4.56 6.21 10.22 16.73 16.67 26.60
5.080 (200") 3.048 4.064 3.88 6.10 8.30 13.66 22.34 22.30 35.53
6.350 (250") 3.810 5.080 4.86 7.64 10.39 17.10 27.95 27.92 44.47
7.620 (300") 4.572 6.096 5.85 9.18 12.48 20.55 33.57 33.55 53.40
8.890 (350") 5.334 7.112 6.83 10.72 14.57 23.99 39.18 39.18 62.34
10.160 (400") 6.096 8.128 7.81 12.25 16.66 27.43 44.79 44.80 71.28
镜头型号 / Lens model
ET-ELW21C
（固定值 / Fixed）
ET-ELW20C / ET-ELT22C / ET-ELT23C
投影机型号 / Projector model
PT-SMW73C /
PT-SMW63C /
PT-SMW53C
PT-SLW83C
SD SH SW H
1.016 (40") 0.610 0.813 0.30 -0.10 - 0.71 -0.06 - 0.67
1.270 (50") 0.762 1.016 0.38 -0.13 - 0.89 -0.08 - 0.84
1.524 (60") 0.914 1.219 0.46 -0.16 - 1.07 -0.09 - 1.01
1.778 (70") 1.067 1.422 0.53 -0.18 - 1.25 -0.11 - 1.17
2.032 (80") 1.219 1.626 0.61 -0.21 - 1.43 -0.12 - 1.34
2.286 (90") 1.372 1.829 0.69 -0.23 - 1.60 -0.14 - 1.51
2.540 (100") 1.524 2.032 0.76 -0.26 - 1.78 -0.15 - 1.68
3.048 (120") 1.829 2.438 0.91 -0.31 - 2.14 -0.18 - 2.01
3.810 (150") 2.286 3.048 1.14 -0.39 - 2.67 -0.23 - 2.51
5.080 (200") 3.048 4.064 1.52 -0.52 - 3.57 -0.30 - 3.35
6.350 (250") 3.810 5.080 1.91 -0.65 - 4.46 -0.38 - 4.19
7.620 (300") 4.572 6.096 2.29 -0.78 - 5.35 -0.46 - 5.03
8.890 (350") 5.334 7.112 2.67 -0.91 - 6.24 -0.53 - 5.87
10.160 (400") 6.096 8.128 3.05 -1.04 - 7.13 -0.61 - 6.71