Panasonic ET-ELW21 Projection Lens Instruction Manual

Operating Instructions
Projection Lens Commercial Use

Model No.
ET-ELW21, ET-ELW20, ET-ELT22, ET-ELT23

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).
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 first!” (Page 3).
• Please save this manual for future use.

Read this first!

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.

• Strong light is emitted from the projector’s lens. Do not look at or place your hands directly into this light.

• Turn off the power when moving away from the projection lens or projector.
  Do not project an image with the lens cover attached.

• Doing so can cause fire.
  Do not allow children to reach the spacer.

• The spacers can cause personal injury if swallowed.

• If 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.

• Unexpected projection of light may cause injury to eyes.
• Replacing 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.

• Strong 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 fire, damage to the object, or malfunction of the lens and projector.

• Strong 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.

• If the desiccant gets into your eyes or mouth, immediately rinse with plenty of water and seek medical attention.
• Keep desiccant out of the reach of children.

Before Use

• 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-ELW21
  Zoom lens| ET-ELW20 / ET-ELT22 / ET-ELT23
• Supported projectors
  PT-MZ770 / PT-MW730 / PT-MZ670 / PT-MW630 / PT-MZ570 / PT-MW530 / PT-EZ770 / PT-EW730 / PT-EX800

Note

• This manual omits the alphabets at the end of projector model numbers.

• Models 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|

•The product is delivered with a lens cap attached.
•The shape and size of the lens caps are different for each product.
1 each for front and rear

Spacer
(TOSAS0001–)|

Attaching/removing the projection lens

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

• Make sure that the projector power supply is switched off before attaching or detaching the projection lens.
• After removing the projection lens, store it safely away from vibration or impacts.
• Do 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.
• Do 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.
• The lens is made of glass. The lens could be damaged if brought into contact with or rubbed against hard objects. Handle the lens carefully.
• Use a clean, soft and dry cloth to wipe away dust and dirt from the projection lens. Do not use fluffy 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.

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.

• Procedure for correcting the focus
  Attention

• Turn off the projector before removing the projection lens.
  Note

• Focus correction requires some technical skill. Be sure to have a person with knowledge of projectors or a service technician to perform adjustments.

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.
   • In 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.
   • Remove the lens mounter from the projector, and insert the spacers in the positions that correspond to the unfocused areas.
   • The “just focus points” of the areas for which you inserted spacers will be corrected toward the rear of the screen.
   • Make sure the adhesive surfaces of the spacers face the lens mounter when inserting them.
   • The 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 x SD x 51.5
   | Black| 0.2 mm| SD x SD x 103
   | Cream| 0.3 mm| SD x SD x 154.5

Correction distance guide: When the projected image size is 1.52 m (60 in.), the corrected distance when one 0.1 mm thick spacer is inserted is 120 mm.

Attention

• Installing the lens mounter, be careful not to put wiring between the lens mounter and the projector unit.

Projection relationships

The dimensional relationship between the screen and the projector is shown below.

• Dimensional relationship diagram
  

Note

• This diagram assumes that the size and position of the projected image will be adjusted so that the image fills the entire screen.
• This illustration is not drawn to scale.
  L| Projection distance
  ---|---
  LW| Minimum distance
  LT| Maximum distance
  Ll| 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
• L1 dimensions (approximate values)
  ** Projector model| ET-ELW21| ET-ELW20| ET-ELT22| ET- ELT23**
  ---|---|---|---|---
  PT-MZ770 / PT-MW730 / PT-MZ670 /
  PT-MW630 / PT-MZ570 / PT-MW530| 0.005| 0.035| 0.036| 0.032
  PT-EZ770 / PT-EW730 / PT-EX800| 0.050| 0.080| 0.081| 0.080

Note

• The 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.

Attention

• To 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.

• Avoid 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

• For details on “Projected image size and Projection distance” for projector models other than PT-MZ770 / PT-MW730 / PT-MZ670 / PT-MW630 / PT-MZ570 / PT-MW530 / PT-EZ770 / PT-EW730 / PT-EX800, refer to “Setting up” in the operating instructions of the projector.

Lens shift ranges

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.

Note

• Lens shifting cannot be performed when a fixed-focus lens (model no.: ET-ELW21) is attached.
• The 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.

Specifications

Check the specifications of each projection lens, and use the appropriate lens for your intended use.

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
Dimensions9| 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 kg (2.38 Ibs)| 1.20 kg (2.65 Ibs)| 1.18 kg (2.60 Ibs)| 1.20 kg (2.65 Ibs)

*1: Excluding protrusions.

Dimensions

Manufactured by:
Panasonic Connect Co., Ltd.
4-1-62 Minoshima, Hakata-ku, Fukuoka 812-8531, Japan
Importer:
Panasonic Connect Europe GmbH
Authorized Representative in EU:
Panasonic Testing Centre Winsbergring 15, 22525 Hamburg, Germany
Importer for UK;
Panasonic Connect UK, a branch of Panasonic Connect Europe GmbH, Maxis 2, Western Road, Bracknell, Berkshire, RG12 1RT

Disposal of Old Equipment Only for European
Union and countries with recycling systems
This symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic products must not be mixed with general household waste. For proper treatment, recovery and recycling of old products, please take them to applicable collection points in accordance with your national legislation. By disposing of them correctly, you will help to save valuable resources and prevent any potential negative effects on human health and the environment. For more information about collection and recycling, please contact your local authority. Penalties may be applicable for incorrect disposal of this waste, in accordance with national legislation.

Panasonic Connect Co., Ltd.
Web Site : https://panasonic.net/cns/projector/
© Panasonic Connect Co., Ltd. 2022

Panasonic Connect North America
Two Riverfront Plaza, Newark, NJ 07102
TEL: (877) 803 – 8492

Panasonic Canada Inc.
5770 Ambler Drive, Mississauga, Ontario L4W 2T3
TEL: (905) 624 – 5010

HS0412AM5042 -PS
Printed in Japan

Appendix

• Dimensional relationship
  The dimensional relationship between the screen and the projector is shown below. L
  L| Projection distance
  ---|---
  LW| Minimum distance
  LT| Maximum distance
  SH| Image height
  H| Distance from the lens center to the lower edge of the projected image
  SW| Image width
  SD| Projected image size
• Projected image size and Projection distance

Note

• When 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).
  Projectors / Projecteurs /
  PT-MZ770 / PT-MZ670 / PT-MZ570 /
  PT-EZ770 / PT-MW730 / PT-MW630 /
  PT-MW530 / PT-EW730 / PT-EX800
  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.

• PT-MZ770 / PT-MZ670 / PT-MZ570 / PT-EZ770
  When the screen aspect ratio is 16:10 Lens type| Fixed focus lens| Zoom lens
  ---|---|---
  Lens model| ET-ELW21| ET-ELW20| ET-ELT22| ET-ELT23
  Throw ratio| 0.764:1| 1.21 – 1.66:1| 2.72 – 4.48:1| 4.44 – 7.12:1
  SD| SH| SW| L (Fixed)| LW| LT| LW| LT| LW| LT
  1.016 (40″)| 0.538| 0.862| 0.63| 1.| 1.| 2.| 4.| 4.| 6.
  1.270 (50″)| 0.673| 1.| 0.80| 1.| 2.| 3.| 5.| 4.70| 8.
  1.524 (60″)| 0.808| 1.| 0.97| 2.| 2.| 3.| 6.| 6.| 9.
  1.778 (70″)| 0.942| 2.| 1.| 2.| 2.50| 4.| 7.| 7.| 11.
  2.032 (80″)| 1.| 2.| 1.| 2.| 3.| 5.| 8.| 8.| 12.
  2.286 (90″)| 1.| 2.| 1.| 2.| 3.| 5.30| 9.| 9.| 14.
  2.540 (100″)| 1.| 2.| 2.| 3.| 3.60| 5.90| 10.| 10.| 15.
  3.048 (120″)| 2.| 3.| 2.00| 3.| 4.| 7.10| 12.| 12.| 19.
  3.810 (150″)| 2.| 3.| 3.| 4.| 5.| 8.90| 15.| 15.| 23.
  5.080 (200″)| 3.| 4.| 3.| 5.| 7.| 12.| 19.| 19.| 31.
  6.350 (250″)| 3.| 5.| 4.| 7.| 9.| 15.| 24.| 24.| 39.
  7.620 (300″)| 4.| 6.| 5.10| 8.| 10.90| 18.| 29.| 29.| 47.
  8.890 (350″)| 5.| 8.| 6.| 9.| 13.| 21.| 34.| 34.| 54.
  10.160 (400″)| 5.| 9.| 7.| 11.| 15.| 24.| 39.| 39.| 62.
  Lens model| ET-ELW21 (Fixed)| ET-ELW20 / ET-ELT22 / ET-ELT23
  ---|---|---
  Projector model| PT-MZ770 / PT-MZ670 /
  PT-MZ570| PT-EZ770
  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| 0.4| -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

When the screen aspect ratio is 16:9

4.44 – 7.12:1
SD| SH| SW| L (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| 6.2
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| 1.6| 2.2| 3.59| 5.93| 5.84| 9.41
1.778 (70″)| 0.872| 1.55| 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| 2.7| 3.7| 6.06| 9.96| 9.88| 15.82
3.048 (120″)| 1.494| 2.657| 2.06| 3.25| 4.45| 7.3| 11.97| 11.9| 19.03
3.810 (150″)| 1.868| 3.321| 2.59| 4.08| 5.58| 9.15| 15| 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| 11.2| 18.42| 30.1| 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| 10.97| 14.96| 24.6| 40.18| 40.17| 63.92

When the screen aspect ratio is 4:3

5.34 – 8.56:1
SD| SH SH| SW| L (Fixed)| LW| LT| LW| LT| LW| LT
1.016 (40″)| 0.61| 0.813| 0.72| 1.16| 1.6| 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| 1.3| 2.07| 2.84| 4.65| 7.65| 7.57| 12.15
2.032 (80″)| 1.219| 1.626| 1.5| 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| 13.2| 13.13| 20.98
3.810 (150″)| 2.286| 3.048| 2.86| 4.5| 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″)| 3.81| 5.08| 4.8| 7.53| 10.28| 16.9| 27.62| 27.58| 43.94
7.620 (300″)| 4.572| 6.096| 5.78| 9.05| 12.35| 20.3| 33.17| 33.14| 52.77
8.890 (350″)| 5.334| 7.112| 6.75| 10.57| 14.41| 23.7| 38.72| 38.7| 61.6
10.160 (400″)| 6.096| 8.128| 7.72| 12.09| 16.48| 27.1| 44.27| 44.26| 70.43

Lens model| ET-ELW21  (Fixed / Fixe / ICI L)| ET-ELW20 / ET-ELT22 / ET-ELT23
---|---|---
Projector model| PT-MZ770 / PT-MZ670 /
PT-MZ570| PT-EZ770
SD| SH| SW| H
1.016 (40″)| 0.61| 0.813| 0.3| -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″)| 3.81| 5.08| 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

• PT-MW730 / PT-MW630 / PT-MW530 / PT-EW730
When the screen aspect ratio is 16:10

4.49 – 7.21:1
SD| SH SH| SW| L (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| 6.1
1.270 (50″)| 0.673| 1.077| 0.81| 1.3| 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| 2.9| 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
2.540 (100″)| 1.346| 2.154| 1.68| 2.66| 3.64| 5.97| 9.8| 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| 14.7| 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| 15.1| 24.68| 24.64| 39.26
7.620 (300″)| 4.039| 6.462| 5.16| 8.1| 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

Lens model| ET-ELW21
(Fixed)| ET-ELW20 / ET-ELT22 / ET-ELT23
---|---|---
Projector model| PT-MW730 / PT-MW630 /
PT-MW530| PT-EW730
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.| 0.34| -0.11 – 0.79| -0.07 – 0.74
1.524 (60″)| 0.808| 1.| 0.40| -0.14 – 0.95| -0.08 – 0.89
1.778 (70″)| 0.942| 2.| 0.47| -0.16 – 1.10| -0.09 – 1.04
2.032 (80″)| 1.| 2.| 0.54| -0.18 – 1.26| -0.11 – 1.18
2.286 (90″)| 1.| 2.| 0.61| -0.21 – 1.42| -0.12 – 1.33
2.540 (100″)| 1.| 2.| 0.67| -0.23 – 1.58| -0.13 – 1.48
3.048 (120″)| 2.| 3.| 0.81| -0.27 – 1.89| -0.16 – 1.78
3.810 (150″)| 2.| 3.| 1.| -0.34-2.36| -0.20-2.22
5.080 (200″)| 3.| 4.| 1.| -0.46 – 3.15| -0.27 – 2.96
6.350 (250″)| 3.| 5.| 2.| -0.57 – 3.94| -0.34 – 3.70
7.620 (300″)| 4.| 6.| 2.| -0.69 – 4.73| -0.40 – 4.44
8.890 (350″)| 5.| 8.| 2.| -0.80 – 5.51| -0.47 – 5.18
10.160 (400″)| 5.| 9.| 3.| -0.92 – 6.30| -0.54 – 5.92

When the screen aspect ratio is 16:9

4.50 – 7.21:1
SD| SH| SW| L (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| 4.9| 7.9
1.524 (60″)| 0.747| 1.328| 1.01| 1.62| 2.22| 3.64| 6| 5.92| 9.52
1.778 (70″)| 0.872| 1.55| 1.19| 1.9| 2.6| 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| 16.01
3.048 (120″)| 1.494| 2.657| 2.09| 3.3| 4.5| 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| 5.3| 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| 24.9| 40.66| 40.66| 64.69

Lens model| ET- ELW21
(Fixed’)| ET-ELW20 / ET-ELT22 / ET-ELT23
---|---|---
Projector model| PT-MW730 / PT-MW630 /
PT-MW530| PT-EW730
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| 1.55| 0.44| -0.21 – 1.08| -0.09 – 0.96
2.032 (80″)| 0.996| 1.771| 0.5| -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

When the screen aspect ratio is 4:3

Lens model| ET-ELW21
(Fixed)| ET-ELW20 / ET-ELT22 / ET-ELT23
---|---|---
Projector model| PT-MW730 / PT-MW630 /
PT-MW530| PT-EW730
SD| SH| SW| H
1.016 (40″)| 0.61| 0.813| 0.3| -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″)| 3.81| 5.08| 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

• PT-EX800
When the screen aspect ratio is 4:3

4.51 – 7.24:1
SD| SH| SW| L (Fixed)| LW| LT| LW| LT| LW| LT
1.016 (40″)| 0.61| 0.813| 0.6| 0.97| 1.35| 2.19| 3.65| 3.56| 5.78
1.270 (50″)| 0.762| 1.016| 0.77| 1.23| 1.7| 2.77| 4.59| 4.5| 7.27
1.524 (60″)| 0.914| 1.219| 0.93| 1.49| 2.05| 3.34| 5.53| 5.44| 8.77
1.778 (70″)| 1.067| 1.422| 1.1| 1.74| 2.4| 3.92| 6.47| 6.38| 10.27
2.032 (80″)| 1.219| 1.626| 1.26| 2| 2.75| 4.5| 7.41| 7.32| 11.77
2.286 (90″)| 1.372| 1.829| 1.43| 2.26| 3.1| 5.07| 8.35| 8.27| 13.26
2.540 (100″)| 1.524| 2.032| 1.59| 2.51| 3.45| 5.65| 9.29| 9.21| 14.76
3.048 (120″)| 1.829| 2.438| 1.92| 3.03| 4.15| 6.8| 11.17| 11.09| 17.75
3.810 (150″)| 2.286| 3.048| 2.42| 3.8| 5.2| 8.53| 14| 13.92| 22.24
5.080 (200″)| 3.048| 4.064| 3.24| 5.08| 6.95| 11.41| 18.7| 18.63| 29.73
6.350 (250″)| 3.81| 5.08| 4.07| 6.37| 8.7| 14.3| 23.4| 23.34| 37.21
7.620 (300″)| 4.572| 6.096| 4.89| 7.65| 10.45| 17.18| 28.11| 28.05| 44.7
8.890 (350″)| 5.334| 7.112| 5.72| 8.94| 12.2| 20.06| 32.81| 32.76| 52.18
10.160 (400″)| 6.096| 8.128| 6.54| 10.22| 13.95| 22.94| 37.51| 37.47| 59.67

Lens model| ET-ELW21 (Fixed)| ET-ELW20 / ET-ELT22 /
ET-ELT23
---|---|---
SD| SH| SW| H
1.016 (40″)| 0.61| 0.813| 0.3| 0.00 – 0.61
1.270 (50″)| 0.762| 1.016| 0.38| 0.00 – 0.76
1.524 (60″)| 0.914| 1.219| 0.46| 0.00 – 0.91
1.778 (70″)| 1.067| 1.422| 0.53| 0.00 – 1.07
2.032 (80″)| 1.219| 1.626| 0.61| 0.00 – 1.22
2.286 (90″)| 1.372| 1.829| 0.69| 0.00 – 1.37
2.540 (100″)| 1.524| 2.032| 0.76| 0.00 – 1.52
3.048 (120″)| 1.829| 2.438| 0.91| 0.00 – 1.83
3.810 (150″)| 2.286| 3.048| 1.14| 0.00 – 2.29
5.080 (200″)| 3.048| 4.064| 1.52| 0.00 – 3.05
6.350 (250″)| 3.81| 5.08| 1.91| 0.00 – 3.81
7.620 (300″)| 4.572| 6.096| 2.29| 0.00 – 4.57
8.890 (350″)| 5.334| 7.112| 2.67| 0.00 – 5.33
10.160 (400″)| 6.096| 8.128| 3.05| 0.00 – 6.10

When the screen aspect ratio is 16:9

4.52 – 7.25:1
SD| SH| SW| L (Fixed)| LW| LT| LW| LT| LW| LT
1.016 (40″)| 0.498| 0.886| 0.66| 1.06| 1.47| 2.4| 3.99| 3.89| 6.31
1.270 (50″)| 0.623| 1.107| 0.84| 1.4| 1.85| 3.03| 5.01| 4.92| 7.94
1.524 (60″)| 0.747| 1.328| 1.02| 1.68| 2.23| 3.65| 6.04| 5.95| 9.57
1.778 (70″)| 0.872| 1.55| 1.2| 1.96| 2.62| 4.28| 7.06| 6.97| 11.21
2.032 (80″)| 0.996| 1.771| 1.38| 2.24| 3| 4.91| 8.09| 8| 12.84
2.286 (90″)| 1.121| 1.992| 1.56| 2.52| 3.38| 5.54| 9.11| 9.02| 14.47
2.540 (100″)| 1.245| 2.214| 1.74| 2.8| 3.76| 6.17| 10.14| 10.05| 16.1
3.048 (120″)| 1.494| 2.657| 2.1| 3.36| 4.52| 7.42| 12.18| 12.1| 19.36
3.810 (150″)| 1.868| 3.321| 2.64| 4.2| 5.67| 9.31| 15.26| 15.18| 24.25
5.080 (200″)| 2.491| 4.428| 3.54| 5.6| 1.51| 12.45| 20.38| 20.32| 32.41
6.350 (250″)| 3.113| 5.535| 4.44| 7| 9.48| 15.59| 25.51| 25.45| 40.56
7.620 (300″)| 3.736| 6.641| 5.33| 8.4| 11.39| 18.73| 30.63| 30.58| 48.72
8.890 (350″)| 4.358| 7.748| 6.23| 9.8| 13.29| 21.87| 35.75| 35.71| 56.87
10.160 (400″)| 4.981| 8.855| 7.13| 11.2| 15.2| 25.01| 40.88| 40.84| 65.03

Lens model| ET-ELW21 (Fixed)| ET-ELW20 / ET-ELT22 /
ET-ELT23
---|---|---
SD| SH| SW| H
1.016 (40″)| 0.498| 0.886| 0.25| -0.08 – 0.58
1.270 (50″)| 0.623| 1.107| 0.31| -0.10 – 0.73
1.524 (60″)| 0.747| 1.328| 0.37| -0.12 – 0.87
1.778 (70″)| 0.872| 1.55| 0.44| -0.15 – 1.02
2.032 (80″)| 0.996| 1.771| 0.5| -0.17 – 1.16
2.286 (90″)| 1.121| 1.992| 0.56| -0.19 – 1.31
2.540 (100″)| 1.245| 2.214| 0.62| -0.21 – 1.45
3.048 (120″)| 1.494| 2.657| 0.75| -0.25 – 1.74
3.810 (150″)| 1.868| 3.321| 0.93| -0.31 – 2.18
5.080 (200″)| 2.491| 4.428| 1.25| -0.42 – 2.91
6.350 (250″)| 3.113| 5.535| 1.56| -0.52 – 3.63
7.620 (300″)| 3.736| 6.641| 1.87| -0.62 – 4.36
8.890 (350″)| 4.358| 7.748| 2.18| -0.73 – 5.08
10.160 (400″)| 4.981| 8.855| 2.49| -0.83 – 5.81

Note

• A ±5 % error in listed projection distances may occur. In addition, when [KEYSTONE] is used, distance is corrected to become smaller than the specified screen size.
• The throw ratio is based on the value during projection with the projected image size of 2.03 m (80″).

Setting-up dimensions which are not given in the above table can be calculated using the formulas below. Check the projected image size SD (m) and use the following formula to determine projection distance (L).

• Projection distance formulas

The dimensions of the following table contain a slight error.

• PT-MZ770 / PT-MZ670 / PT-MZ570 / PT-EZ770
  **| L
  ---|---
  LW| LT**
  ET-ELW21| When the screen aspect ratio is 16:10| = 0.6763 x SD – 0.0577
  When the screen aspect ratio is 16:9| = 0.6951 x SD – 0.0577
  When the screen aspect ratio is 4:3| = 0.7656 x SD – 0.0577
  ET-ELW20| When the screen aspect ratio is 16:10| =1.0557 x SD – 0.0555| =1.4374 x SD – 0.0534
  When the screen aspect ratio is 16:9| =1.0851 x SD – 0.0555| =1.4774 x SD – 0.0534
  When the screen aspect ratio is 4:3| =1.1952 x SD – 0.0555| =1.6273 x SD – 0.0534
  ET-ELT22| When the screen aspect ratio is 16:10| =2.3662 x SD – 0.1140| =3.8583 x SD – 0.1129
  When the screen aspect ratio is 16:9| =2.4320 x SD – 0.1140| =3.9656 x SD – 0.1129
  When the screen aspect ratio is 4:3| =2.6788 x SD – 0.1140| =4.3680 x SD – 0.1129
  ET-ELT23| When the screen aspect ratio is 16:10| =3.8667 x SD – 0.2123| =6.1416 x SD – 0.2108
  When the screen aspect ratio is 16:9| =3.9742 x SD – 0.2123| =6.3123 x SD – 0.2108
  When the screen aspect ratio is 4:3| =4.3775 x SD – 0.2123| =6.9529 x SD – 0.2108

• PT-MW730 / PT-MW630 / PT-MW530 / PT-EW730

| L
---|---
LW| I LT
ET-ELW21| When the screen aspect ratio is 16:10| = 0.6842 x SD – 0.0572
When the screen aspect ratio is 16:9| = 0.7032 x SD – 0.0572
When the screen aspect ratio is 4:3| = 0.7746 x SD – 0.0572
ET-ELW20| When the screen aspect ratio is 16:10| = 1.0702 x SD – 0.0554| = 1.4530 x SD – 0.0534
When the screen aspect ratio is 16:9| = 1.1000 x SD – 0.0554| = 1.4934 x SD – 0.0534
When the screen aspect ratio is 4:3| = 1.2116 x SD – 0.0554| = 1.6449 x SD – 0.0534
ET-ELT22| When the screen aspect ratio is 16:10| = 2.3952 x SD – 0.1139| = 3.9041 x SD – 0.1128
When the screen aspect ratio is 16:9| = 2.4617 x SD – 0.1139| = 4.0126 x SD – 0.1128
When the screen aspect ratio is 4:3| – 2.7115 x SD – 0.1139| – 4.4197 x SD – 0.1128
ET-ELT23| When the screen aspect ratio is 16:10| = 3.9138 x SD – 0.2127| = 6.2152 x SD – 0.2107
When the screen aspect ratio is 16:9| = 4.0226 x SD – 0.2127| = 6.3880 x SD – 0.2107
When the screen aspect ratio is 4:3| = 4.4307 x SD – 0.2127| = 7.0361 x SD – 0.2107

• PT-EX800

| L
---|---
LW| I LT
ET-ELW21| When the screen aspect ratio is 4:3| = 0.6496 x SD – 0.0585
When the screen aspect ratio is 16:9| = 0.7078 x SD – 0.0585
ET-ELW20| When the screen aspect ratio is 4:3| = 1.0118 x SD – 0.0558| = 1.3780 x SD – 0.0540
When the screen aspect ratio is 16:9| = 1.1024 x SD – 0.0558| = 1.5013 x SD – 0.0540
ET-ELT22| When the screen aspect ratio is 4:3| = 2.2693 x SD – 0.1142| = 3.7032 x SD – 0.1129
When the screen aspect ratio is 16:9| = 2.4724 x SD – 0.1142| = 4.0346 x SD – 0.1129
ET-ELT23| When the screen aspect ratio is 4:3| = 3.7091 x SD – 0.2132| = 5.8937 x SD – 0.2109
When the screen aspect ratio is 16:9| = 4.0339 x SD – 0.2132| = 6.4212 x SD – 0.2109

Panasonic Connect Co., Ltd.
Web Site : https://panasonic.net/cns/projector/

Panasonic Connect North America
Two Riverfront Plaza, Newark, NJ 07102
TEL: (877) 803 – 8492

Panasonic Canada Inc.
5770 Ambler Drive, Mississauga, Ontario L4W 2T3
TEL: (905) 624 – 5010

© Panasonic Connect Co., Ltd. 2022
HS0718AM1042 -PS
Printed in Japan

Documents / Resources

| Panasonic ET-ELW21 Projection Lens [pdf] Instruction Manual
ET-ELW21 Projection Lens, ET-ELW21, Projection Lens, Lens
---|---

References

• Projector | Panasonic Global

Read User Manual Online (PDF format)

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