At a glance
- Specifications of This Lens
- Where It Works: List of 2 Compatible Models (with Parameters)
- What Zorsika Lenses Offer You
- What to Watch Out for When Replacing a Lens
- You Might Want to Ask
- Q: My machine isn't on the list of 2 models above — can I use the WK261?
- Q: Can the lens replace the original one?
- Q: Why choose Zorsika instead of the original?
- Q: What if the lens doesn't match the screen size?
- Q: Does the WK261 come with installation instructions?
- Q: How long is the lens warranty?
- Related Query Entries
- Procurement Consultation
Zorsika WK261 projector lens, matched to OEM optical specs, compatible with AL-DF765, AL-DF767 and other 2 Appotronics projectors.
WK261 is a lens compatible with engineering projectors from brands such as Appotronics. This article compiles its list of 2 compatible projector models and selection notes.

Specifications of This Lens
| Lens Model | WK261 |
| Compatible Brand | Appotronics |
| Compatible Model Brightness | 6200–7300 lumens |
| Compatible Model Resolution | 1920x1080 |
| Zoom Ratio | 1.6X |
| Throw Ratio | 0.46:1 |
| Applicable Panel Size | 0.67 inch |
| Number of Compatible Models | 2 |
The above parameters come from the Zorsika product database. For the complete technical specification sheet, please contact sales.
Where It Works: List of 2 Compatible Models (with Parameters)
The following are verified compatible models for the WK261 (Appotronics projectors), with brightness, resolution, and zoom ratio listed for each:
| Projector Model | Brightness | Resolution | Zoom Ratio |
|---|---|---|---|
| AL-DF765 | 6200 lumens | 1920x1080 | 1.6X |
| AL-DF767 | 7300 lumens | 1920x1080 | 1.6X |
Note: Brightness, resolution, and zoom ratio are taken from the Zorsika product database (refer to the model nameplate/manual for accuracy); lens compatibility is based on the body interface and optical structure. For models not on the list, please contact Zorsika technical support for confirmation.
What Zorsika Lenses Offer You
For engineering lenses like the WK261, Zorsika benchmarks each item against the original optical parameters (focal length, throw ratio, lens group), with consistent lens coating processes, delivering sharp imaging with no blurring at the edges — ready to use upon installation.
Zorsika's equivalent-spec replacement model is compatible with 2 projector models including the Appotronics AL-DF765 and AL-DF767; enter WK261 in the Zorsika official website query system to find the complete model compatibility list.
- Optical Benchmarking: Focal length, throw ratio, and lens group matched to original parameters
- Resolution Testing: Each unit tested before shipment, with MTF data available
- Coating Process: Lens coatings at the same level as the original, reducing light loss
- Stable Supply: Supports bulk procurement and project supply
In short: the lens is the optical core — don't gamble on image quality to save a few bucks. Zorsika projector lenses are manufactured according to original drawings, offering a comprehensive advantage.
Note: Actual imaging performance is affected by the projector's condition and installation environment. Before bulk procurement, we recommend getting 1 unit for testing first.
What to Watch Out for When Replacing a Lens
- Power off before replacing the lens: Before removing or installing the lens, be sure to shut down and wait for the cooling fan to stop, to avoid damaging the interface from live operation.
- Don't touch the lens elements: Fingerprints and oil will directly affect image quality. Hold the lens by the barrel, not the glass; use an air blower to gently remove dust — do not wipe dry with a cloth.
- Focus before tightening: After installation, test focus first, then tighten the fixing screws, to avoid image drift from loosening over long-term use.
- Keep the interface clean: Dust buildup on the mount and contacts can cause poor contact. Cleaning it while replacing the lens is a safer approach.
You Might Want to Ask
Q: My machine isn't on the list of 2 models above — can I use the WK261?
A: The list covers verified models, not all of them. Engineering projectors of the same brand and generation often share the same lens interface. It's safer to take photos of the body nameplate and the original lens and send them to Zorsika technical support for confirmation.
Q: Can the lens replace the original one?
A: The lens is the core of the projector's optical path and directly determines clarity and color. Zorsika lenses (model numbers as in the specification table above) benchmark each item against the original optical parameters (focal length, throw ratio, lens group), with consistent lens coating processes, delivering sharp imaging with no blurring at the edges. Ordinary replacement lenses often use ordinary glass elements with insufficient coating layers, making brightness loss and color shift obvious at a glance. For engineering and exhibition scenarios, Zorsika is recommended.
Q: Why choose Zorsika instead of the original?
A: Zorsika lenses are manufactured according to original optical drawings, with the lens group, coatings, and throw ratio benchmarked item by item, and each unit undergoes resolution testing before shipment. Compared to the original, delivery times are shorter and the overall value is better; compared to other replacement lenses, optical quality is backed by data.
Q: What if the lens doesn't match the screen size?
A: First confirm the model's lens interface and optical axis position, then choose a lens with the corresponding 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: Does the WK261 come with installation instructions?
A: Yes. The lens removal and installation steps for Appotronics models like these are basically the same. Contact Zorsika sales to obtain illustrated or video instructions for the corresponding model.
Q: How long is the lens warranty?
A: All Zorsika projector lenses come with a 12-month warranty. For normal use and non-human-caused damage (such as impacts, water damage, or unauthorized disassembly), you can contact after-sales service directly. The warranty period is based on the date on the shipment document.
Related Query Entries
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Query
- Projector Lamp / Lens / Air Filter Product Library
Procurement Consultation
For solution consultation, project proposals, or the complete model compatibility list for the Zorsika WK261, please contact us via:
- 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 model data in this article come from the Zorsika product database. Data is continuously updated; please refer to actual inquiry confirmation.