At a glance
- Specifications
- WK021 Compatible Projector Model List (23 Models with Brightness/Resolution/Zoom Ratio)
- What the Zorsika Lens Offers You
- What to Consider When Replacing the Lens?
- Frequently Asked Questions
- Q: My projector isn't on the 23-model list above. Can I use the WK021?
- Q: Can this lens replace the original one?
- Q: Why choose Zorsika instead of the original?
- Q: What if the lens doesn't match the image size?
- Q: Are installation instructions available for the WK021?
- Related Search Entries
- Procurement Inquiries
Zorsika WK021 projector lens, matched to original optical parameters, compatible with 23 Panasonic projectors including PT-SMZ66C, PT-SMZ67C, PT-SMZ77C, PT-SMZ57C.
The projector lens directly determines the image size and clarity. The WK021 covers 23 Panasonic projector models; check the compatibility list before replacing the lens.

Specifications
| Lens Model | WK021 |
| Compatible Brand | Panasonic |
| Compatible Projector Brightness | 5500–8700 lumens |
| Compatible Projector Resolution | WUXGA 1920×1200 |
| Zoom Ratio | 1.65X, ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| Throw Ratio | 0.413:1 |
| Compatible Panel Size | 0.76 inches |
| Number of Compatible Models | 23 models |
The above specifications are sourced from the Zorsika product database. For the full technical datasheet, please contact our sales team.
WK021 Compatible Projector Model List (23 Models with Brightness/Resolution/Zoom Ratio)
The following are the verified compatible Panasonic projector models for the WK021, each with brightness, resolution, and zoom ratio:
| Projector Model | Brightness | Resolution | Zoom Ratio |
|---|---|---|---|
| PT-SMZ66C | 6000 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ67C | 6500 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ77C | 8000 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ57C | 5500 lumens | WUXGA 1920×1200 | 1.65X |
| PT-MZ770 | 7500 lumens | WUXGA 1920×1200 | — |
| PT-MZ670 | 6500 lumens | WUXGA 1920×1200 | 1.65X |
| PT-MZ570 | 5500 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ56CL | 5500 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ58CL | 5800 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ75CL | 7500 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ78CL | 7800 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ88CL | 8000 lumens | WUXGA 1920×1200 | 1.65X |
| PT-SMZ89 | 8700 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-SMZ79 | 7800 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-SMZ68 | 6800 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-SMZ60 | 6000 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-SMZ85 | 8000 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-MZ680 | 6500 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-MZ780 | 7500 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-MZ880 | 8000 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-MZ682 | 6500 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-MZ782 | 7500 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
| PT-MZ882 | 8200 lumens | WUXGA 1920×1200 | ET-ELW21(0.764) ET-ELU20(0.330–0.353) ET-ELW22(0.786–0.983) ET-ELW20(1.21–1.66) ET-ELS201(1.61–2.76) ET-ELT22(2.72–4.48) ET-ELT23(4.44–7.12) |
Note: Brightness, resolution, and zoom ratio are sourced from the Zorsika product database (refer to the model nameplate/datasheet for confirmation); lens compatibility is determined by the projector's mount interface and optical structure. For models not listed, please contact Zorsika technical support for confirmation.
What the Zorsika Lens Offers You
Zorsika provides replacement lenses for the WK021 with specifications matching the original, with key parameters benchmarked against the OEM part, supporting bulk project procurement and supply.
The Zorsika equivalent replacement model is compatible with 23 Panasonic projector models, including the PT-SMZ66C, PT-SMZ67C, PT-SMZ77C, PT-SMZ57C, PT-MZ770, etc. Enter WK021 in the search system on the Zorsika official website to view the full list of compatible models.
- Optical Benchmarking: Focal length, throw ratio, and lens groups are matched to OEM specifications
- Resolution Testing: Each lens is individually tested before shipment, with MTF data available
- Coating Technology: Lens coatings are on par with the original, reducing light loss
- Stable Supply: Supports bulk procurement and project supply
In short: The lens is the optical core, so don't gamble image quality for a price difference — Zorsika projector lenses are manufactured according to original drawings, offering a comprehensive advantage.
Note: Actual image performance is affected by projector condition and installation environment. We recommend testing one unit before bulk procurement.
What to Consider When Replacing the Lens?
- Power off before replacing the lens: Always turn off the projector and wait for the cooling fan to stop before removing or installing the lens to avoid damaging the interface with power on.
- Don't touch the glass: Fingerprints and oil can directly affect image quality. Hold the lens barrel, not the glass; use an air blower for dust, and never wipe with a dry cloth.
- Focus before tightening: After installation, test the focus first, then tighten the locking screws to prevent image drift from loosening over time.
- Keep the interface clean: Dust on the mount and contacts can cause poor connectivity; clean them while replacing the lens for safety.
Frequently Asked Questions
Q: My projector isn't on the 23-model list above. Can I use the WK021?
A: The list includes verified models but isn't exhaustive. Projectors of the same brand and generation often share lens mounts. For confirmation, send photos of the model nameplate and original lens to Zorsika technical support.
Q: Can this lens replace the original one?
A: The lens is the core of the projection optical path, directly determining clarity and color. Zorsika lenses (model shown in the specifications above) are benchmarked against OEM optical parameters (focal length, throw ratio, lens groups), with consistent coating technology, delivering sharp images without edge softness. Ordinary replacement lenses often use standard glass with insufficient coating layers, making brightness loss and color shifts immediately visible. For engineering and exhibition scenarios, Zorsika is the recommended choice.
Q: Why choose Zorsika instead of the original?
A: Zorsika lenses are manufactured according to original optical drawings, with lens groups, coatings, and throw ratios benchmarked item by item, and each lens undergoes resolution testing before shipment. Compared to the original, lead times are shorter and overall value is better; compared to other replacement lenses, optical quality is backed by data.
Q: What if the lens doesn't match the image size?
A: First, confirm the projector's lens mount and optical axis position, then select a lens with the appropriate throw ratio based on the actual installation distance. If unsure, send the installation distance and screen size to Zorsika technical support, and we'll help you choose.
Q: Are installation instructions available for the WK021?
A: Yes. The lens removal and installation steps for Panasonic models like these are generally consistent. Contact Zorsika sales to get illustrated or video instructions for your specific model.
Related Search Entries
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Search
- Projector Lamp / Lens / Air Filter Product Library
Procurement Inquiries
For consultation on the Zorsika WK021, project proposals, or the full list of compatible models, contact us through the following channels:
- Website: www.zorsika.com
- Phone: 0086-20-38551187
- Email: sales@zorsika.com
- Business Hours: Monday to Friday, 9:00-18:00
The lens models and compatible projector data in this article are sourced from the Zorsika product database and are continuously updated; please confirm with actual inquiries.