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ET-ELW21C
ET-ELT22C
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 (
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!" (
■ Please save this manual for future use.
Operating Instructions
Projection Lens
Model No.
ET-ELW20C
ET-ELT23C
Commercial Use
ET-ELW21C
ET-ELW20C
ET-ELT22C
ET-ELT23C
Page 4).
Page 3).
ENGLISH
TQZJ445-4
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Table of Contents
Related Manuals for Panasonic ET-ELW21C
Summary of Contents for Panasonic ET-ELW21C
- Page 1 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). ...
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Page 2: Table Of Contents
█ Contents Read this first! ..................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 Specifications ..................10 Dimensions ..................10... -
Page 3: Read This First
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. z Strong light is emitted from the projector’s lens. Do not look at or place your hands directly into this light. -
Page 4: Before Use
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 /... -
Page 5: Attaching The Lens / Detaching The Lens
Attaching / removing the projection lens (continued) z 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. - Page 6 Making Adjustments (continued) Screws ネジ Projection lens 投写レンズ スペーサー Spacers レンズマウンター Lens mounter Fig. 2 Fig. 1 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.
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Page 7: Projection Relationships
Distance from the lens center to the lower edge of the projected image Image width Projected image size z L1 dimensions (approximate values) (Unit: m) Projector model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C PT-SMZ77C / PT-SMW73C / PT-SMZ67C / 0.005 0.035 0.036 0.032 PT-SMW63C / PT-SMZ57C / PT-SMW53C PT-SLZ77C / PT-SLW83C / 0.050... -
Page 8: Lens Shift Ranges
Projection relationships (continued) Attention z 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. z Avoid setting up in places which are subject to sudden temperature changes, such as near an air conditioner or lighting equipment (studio lamps, etc.). - Page 9 0.1 H Image width H Note z Lens shifting cannot be performed when a fixed-focus lens (model no.: ET-ELW21C) is attached. z 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.
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Page 10: Specifications
Specifications 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 Ultra long Lens Type Short fixed lens Short zoom lens Long zoom lens zoom lens F value 1.8 to 2.3... - Page 11 Dimensions (continued) Model number Dimensions ET-ELW20C 196 (7-23/32"; fully extended) ET-ELT22C 197 (7-24/32"; fully extended) ET-ELT23C 196 (7-23/32"; fully extended) ENGLISH-11...
- Page 12 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. 日本福冈县福冈市博多区美野岛四丁目1番62号 https://panasonic.cn/ 2022 HS0412AM4042 -PS © 松下互联株式会社 2022版权所有...
- Page 13 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 L (LW/LT) 屏幕 / Screen L (LW/LT) 投影距离 / Projection distance 離 最小距离 / Minimum distance 離 最大距离...
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Page 14: Projected Image Size And Projection Distance
z 投影画面尺寸和投影距离 z Projected 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 z When using projector models other than the following, refer to “Setting up” in the operating instructions of the projector. - Page 15 When the screen aspect ratio is 16:10 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus 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...
- Page 16 When the screen aspect ratio is 16:9 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus 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...
- Page 17 When the screen aspect ratio is 4:3 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus 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...
- Page 18 When the screen aspect ratio is 16:10 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus 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...
- Page 19 When the screen aspect ratio is 16:9 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus 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...
- Page 20 When the screen aspect ratio is 4:3 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus 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...
- Page 21 When the screen aspect ratio is 4:3 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus lens 镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C 投射率 / Throw ratio 0.776:1 1.23 - 1.69:1 2.77 - 4.56:1...
- Page 22 When the screen aspect ratio is 16:9 ( 单位 / Unit : m) 定焦镜头 / 镜头类型 / Lens type 变焦镜头 / Zoom lens Fixed focus lens 镜头型号 / Lens model ET-ELW21C ET-ELW20C ET-ELT22C ET-ELT23C 投射率 / Throw ratio 0.779:1 1.26 - 1.69:1 2.77 - 4.57:1...
- Page 23 提示 z 所列出的投影距离可能有 ±5 % 的误差。 此外，当使用 [KEYSTONE] 时，距离被校正为小于指定的屏幕尺寸。 z 投射率基于投影期间使用的投影画面尺寸为 2.03 m (80") 时的值。 Note z 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.
- Page 24 Periods are used to represent decimal points in the calculation formulas in the following table. z PT-SMZ77C / PT-SMZ67C / PT-SMZ57C / PT-SLZ77C ( 单位 / Unit : m) ET-ELW21C 当屏幕宽高比为 16:10 时 = 0.6763 x SD - 0.0577 When the screen aspect ratio is 16:10 当屏幕宽高比为...
- Page 25 ( 单位 / Unit : m) z PT-SMW73C / PT-SMW63C / PT-SMW53C / PT-SLW83C ET-ELW21C 当屏幕宽高比为 16:10 时 = 0.6842 x SD - 0.0572 When the screen aspect ratio is 16:10 当屏幕宽高比为 16:9 时 = 0.7032 x SD - 0.0572 When the screen aspect ratio is 16:9 当屏幕宽高比为...
- Page 26 ( 单位 / Unit : m) z PT-SLX80C / PT-SLX75C ET-ELW21C 当屏幕宽高比为 4:3 时 = 0.6496 x SD - 0.0585 When the screen aspect ratio is 4:3 当屏幕宽高比为 16:9 时 = 0.7078 x SD - 0.0585 When the screen aspect ratio is 16:9 ET-ELW20C 当屏幕宽高比为...
- Page 27 MEMO 附表 / Appendix...
- Page 28 日本福冈县福冈市博多区美野岛四丁目1番62号 https://panasonic.cn/ 2022 HS0718AM1042 -PS © 松下互联株式会社 2022版权所有 日本印刷...