At a glance
- Lens Specifications Overview
- Where It Works: 2 Compatible Models (With Specifications)
- Why Choose Zorsika for the Same Specifications
- What to Keep in Mind When Replacing the Lens?
- Frequently Asked Questions
- Q: My projector isn't on the 2-model list above. Can I use the WK291?
- Q: Can this lens replace the original factory one?
- Q: Why choose Zorsika instead of the original factory?
- Q: What if the lens doesn't match the image size?
- Q: Is there an installation guide for the WK291?
- Q: What is the warranty period for the lens?
- Related Search Portals
- Procurement Inquiries
Zorsika WK291 projector lens, matched to original optical parameters, compatible with 2 ViewSonic projectors: SML-L2300U and SML-L2000U.


The WK291 is a lens compatible with engineering projectors from brands such as Seemile. This article compiles its 2 compatible projector models and selection notes.
Zorsika WK291 Projector LensLens Specifications Overview
| Lens Model | WK291 |
| Compatible Brand | Seemile |
| Compatible Projector Brightness | 23,000 lumens |
| Compatible Projector Resolution | WUXGA 1920×1200 |
| Throw Ratio | 0.38:1 |
| Compatible Panel Size | 0.80 inches |
| Number of Compatible Models | 2 models |
The above specifications are sourced from the Zorsika product database. For the full technical datasheet, please contact our sales team.
Where It Works: 2 Compatible Models (With Specifications)
The following are the verified compatible models for the WK291 (Seemile projectors), each with brightness, resolution, and zoom ratio:
| Projector Model | Brightness | Resolution | Zoom Ratio |
|---|---|---|---|
| SML-L2300U | 23,000 lumens | WUXGA 1920×1200 | — |
| SML-L2000U | 23,000 lumens | WUXGA 1920×1200 | — |
Note: Brightness, resolution, and zoom ratio are taken from the Zorsika product database (refer to the model nameplate/user manual for accuracy); lens compatibility is determined by the projector's mount interface and optical structure. For models not listed, please contact Zorsika technical support for confirmation.
Why Choose Zorsika for the Same Specifications
The WK291 is a commonly used lens for projects. Zorsika benchmarks every parameter against original factory specifications, and each unit undergoes resolution testing before shipment, ensuring optical quality is backed by data.
Zorsika's equivalent replacement lens is compatible with 2 Seemile models, including the SML-L2300U and SML-L2000U; enter WK291 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 original factory parameters
- Resolution Testing: Each unit is tested before shipment, with MTF data available for review
- Coating Technology: Lens coatings are on par with original factory quality, reducing light loss
- Stable Supply: Supports bulk procurement and project-based supply
In short: The lens is the optical core—don't gamble image quality against a price difference. Zorsika projector lenses are manufactured to original factory drawings, offering a comprehensive advantage.
Note: Actual imaging performance is affected by projector condition and installation environment. We recommend testing one unit before bulk procurement.
What to Keep in Mind 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 while powered.
- Don't Touch the Lens Glass: Fingerprints and oil can directly affect image quality. Hold the lens by the barrel, not the glass; use an air blower for dust, and never wipe with a dry cloth.
- Focus Before Tightening: After installation, test 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; cleaning them during lens replacement is a safer practice.
Frequently Asked Questions
Q: My projector isn't on the 2-model list above. Can I use the WK291?
A: The list covers verified models but isn't exhaustive. Engineering projectors of the same brand and generation often share the same lens mount. For a safer confirmation, send photos of the model nameplate and original lens to Zorsika technical support.
Q: Can this lens replace the original factory one?
A: The lens is the core of the projection optical path, directly determining sharpness and color. Zorsika lenses (model as per the spec table above) are benchmarked item by item against original factory optical parameters (focal length, throw ratio, lens groups), with consistent coating technology, delivering sharp images without soft edges; ordinary replacement lenses often use standard glass with insufficient coating layers, making brightness loss and color shift immediately visible. For engineering and exhibition scenarios, Zorsika is the recommended choice.
Q: Why choose Zorsika instead of the original factory?
A: Zorsika lenses are manufactured to original factory optical drawings, with lens groups, coatings, and throw ratio benchmarked item by item, and each unit undergoes resolution testing before shipment. Compared to the original factory, 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 recommend the right option.
Q: Is there an installation guide for the WK291?
A: Yes. The lens removal and installation steps for Seemile models like these are largely consistent. Contact Zorsika sales to obtain illustrated or video guides for the specific model.
Q: What is the warranty period for the lens?
A: All Zorsika projector lenses come with a 12-month warranty; for normal use and non-man-made damage (e.g., impact, water ingress, unauthorized disassembly), contact after-sales service directly. The warranty period is based on the shipping document date.
Related Search Portals
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Search
- Projector Lamp / Lens / Air Filter Product Library
Procurement Inquiries
For consultation on the Zorsika WK291, project proposals, or the full list of compatible models, please contact us through the following channels:
- Official Website: www.zorsika.com
- Phone: 0086-20-38551187
- Email: sales@zorsika.com
- Business Hours: Monday to Friday, 9:00-18:00
The lens model and compatible projector data in this article are sourced from the Zorsika product database, which is continuously updated. Please confirm with actual quotations for accuracy.