At a glance
- Where It Works: List of 5 Compatible Models (with Specifications)
- Specifications
- Frequently Asked Questions
- Q: What should I do if the lens doesn't match the picture size?
- Q: My projector isn't in the list of 5 models above — can I use WK243?
- Q: Can this lens replace the original one?
- Q: Why choose Zorsika instead of the original manufacturer?
- Q: How long is the lens warranty?
- What Zorsika Lenses Offer You
- What to Watch Out for When Changing a Lens
- Related Query Links
- Purchasing Inquiry
Zorsika WK243 projector lens, matched to OEM optical specifications, compatible with 5 HOKUS projectors including HT-L780K, HT-L680K, HT-L800U, HT-L700U.
Picture too small or installation distance not enough? Changing a lens can solve it. WK243 is compatible with 5 HOKUSAI projector models — see the list below.

Where It Works: List of 5 Compatible Models (with Specifications)
The following are verified compatible models for WK243 (HOKUSAI projectors), with brightness, resolution, and zoom ratio listed for each:
| Projector Model | Brightness | Resolution | Zoom Ratio |
|---|---|---|---|
| HT-L780K | 7500 lumens | 4K (3840×2160 pixels) | — |
| HT-L680K | 6500 lumens | 4K (3840×2160 pixels) | — |
| HT-L800U | 8000 lumens | WUXGA 1920×1200 | — |
| HT-L700U | 7000 lumens | WUXGA 1920×1200 | — |
| HT-L660U | 6000 lumens | WUXGA 1920×1200 | — |
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 chassis interface and optical structure. For models not listed, please contact Zorsika technical support for confirmation.
Specifications
| Lens Model | WK243 |
| Compatible Brand | HOKUSAI |
| Compatible Model Brightness | 6000–8000 lumens |
| Compatible Model Resolution | 4K (3840×2160 pixels), WUXGA 1920×1200 |
| Throw Ratio | 0.38:1 |
| Applicable Panel Size | 0.80 inch |
| Number of Compatible Models | 5 |
The above specifications are from the Zorsika product database. For the complete technical datasheet, please contact sales.
Frequently Asked Questions
Q: What should I do if the lens doesn't match the picture size?
A: First confirm the lens interface and optical axis position of your model, then choose a lens with the corresponding throw ratio based on your actual installation distance. If unsure, send your installation distance and screen size to Zorsika technical support, and we'll help you choose.
Q: My projector isn't in the list of 5 models above — can I use WK243?
A: The list covers verified models, but it doesn't represent all compatible ones. Engineering projectors of the same brand and generation often share the same lens interface. It's safer to send photos of the model nameplate and the original lens to Zorsika technical support for confirmation.
Q: Can this lens replace the original one?
A: The lens is the core of the projector's optical path, directly determining clarity and color. Zorsika lenses (model numbers as shown in the specification table above) are benchmarked item by item against the original optical parameters (focal length, throw ratio, lens group), with consistent lens coating processes, delivering sharp imaging with no blurry edges. Ordinary replacement lenses often use standard glass elements with insufficient coating layers, resulting in visible brightness loss and color shift. For engineering and exhibition scenarios, Zorsika is recommended.
Q: Why choose Zorsika instead of the original manufacturer?
A: Zorsika lenses are produced according to the original optical drawings, with the lens group, coatings, and throw ratio benchmarked item by item, and each unit undergoes resolution testing before leaving the factory. Compared to the original manufacturer, lead times are shorter and overall value is better; compared to other replacement lenses, optical quality is backed by data.
Q: How long is the lens warranty?
A: All Zorsika projector lenses come with a 12-month warranty. Under normal use, for non-human-caused damage (such as impact, water damage, or unauthorized disassembly), you can contact after-sales service directly. The warranty period is based on the date on the shipment document.
What Zorsika Lenses Offer You
WK243 is a commonly used lens for projects. Zorsika benchmarks it item by item against the original parameters, and each unit undergoes resolution testing before leaving the factory, so optical quality is backed by data.
Zorsika's equivalent replacement model, compatible with HOKUSAI HT-L780K, HT-L680K, HT-L800U, HT-L700U, HT-L660U and other 5 models; enter WK243 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 leaving the factory, with MTF data available
- Coating Process: Lens coatings at the same level as the original, reducing light loss
- Stable Supply: Supports bulk purchasing and project supply
In one sentence: The lens is the optical core — don't gamble on picture quality to save a few bucks. Zorsika projector lenses are produced according to original drawings and offer better overall value.
Note: Actual imaging performance is affected by the projector's condition and installation environment. Before bulk purchasing, we recommend getting 1 unit for actual testing.
What to Watch Out for When Changing a Lens
- Power off before changing 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 by operating with power on.
- Don't touch the lens elements: Fingerprints and oil stains directly affect image quality. Hold the lens by the barrel, not the glass. If there's dust, use an air blower gently — don't wipe dry with a cloth.
- Focus before tightening: After installation, do a focus test first, then tighten the fixing screws, to avoid picture 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 changing the lens is a safer approach.
Related Query Links
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Lookup
- Projector Lamp / Lens / Air Filter Product Library
Purchasing Inquiry
For Zorsika WK243 solution consultation, project proposals, or the complete model compatibility list, 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 model and compatible model data in this article are from the Zorsika product database. Data is continuously updated; please confirm with an actual quotation.