
Screen too small or not enough installation distance? A lens swap can solve it. The WD508 fits 2 Vivitek models—check the list below.
Zorsika WD508 Projector Lens
Where It Works: 2-Model Compatibility List (With Specs)
Below are the verified compatible models for the WD508 (Vivitek projectors), each with brightness, resolution, and zoom ratio:
| Projector Model | Brightness | Resolution | Zoom Ratio |
|---|---|---|---|
| RU75953 | 8000 lumens | WUXGA 1920×1200 | VL911G 0.77 – 1.1: 1, VL907G 1.1 – 1.3: 1, VL912G 1.26 – 1.60: 1, VL906G 1.54 – 1.93: 1, VL908G 1.93 – 2.9: 1, VL909G 3.0 – 5.0 : 1, |
| RU70983 | 7000 lumens | WUXGA 1920×1200 | VL911G 0.77 – 1.1: 1, VL907G 1.1 – 1.3: 1, VL912G 1.26 – 1.60: 1, VL906G 1.54 – 1.93: 1, VL908G 1.93 – 2.9: 1, VL909G 3.0 – 5.0 : 1, |
Note: Brightness, resolution, and zoom ratio are sourced from the Zorsika product database (refer to the model nameplate/spec sheet); lens compatibility is determined by the unit's mount and optical structure. For models not listed, contact Zorsika technical support for confirmation.
This Lens's Specifications
| Lens Model | WD508 |
| Compatible Brand | Vivitek |
| Compatible Model Brightness | 7000–8000 lumens |
| Compatible Model Resolution | WUXGA 1920×1200 |
| Zoom Ratio | VL911G 0.77 – 1.1: 1, VL907G 1.1 – 1.3: 1, VL912G 1.26 – 1.60: 1, VL906G 1.54 – 1.93: 1, VL908G 1.93 – 2.9: 1, VL909G 3.0 – 5.0 : 1, |
| Throw Ratio | 0.35:1 |
| Compatible Panel Size | 0.67 inch |
| Number of Compatible Models | 2 models |
The above specs are from the Zorsika product database; contact sales for the full technical datasheet.
You Might Be Wondering
Q: What if the lens doesn't match the screen size?
A: First, check the lens mount and optical axis position of your model, then choose the lens with the corresponding throw ratio based on your actual installation distance. If you're unsure, send the installation distance and screen size to Zorsika technical support, and we'll help you pick the right one.
Q: My projector isn't in the 2-model list above—can I still use the WD508?
A: The list covers verified models but isn't exhaustive. Projectors of the same brand and generation often share the same lens mount. For a safer bet, take a photo of the nameplate and original lens and send it to Zorsika technical support for confirmation.
Q: Can this lens replace the original one?
A: The lens is the core of the projection optical path and directly determines sharpness and color. Zorsika lenses (see the spec table above for the model) are matched item by item against original optical parameters (focal length, throw ratio, lens groups), with the same coating process, delivering sharp images with no edge blur. Ordinary replacement lenses often use standard glass with insufficient coating layers, making brightness loss and color shift obvious at a glance. For professional and exhibition use, Zorsika is the recommended choice.
Q: Why choose Zorsika instead of the original?
A: Zorsika lenses are manufactured to original optical drawings, with lens groups, coatings, and throw ratios matched item by item, and each unit undergoes resolution testing before shipping. 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: How long is the lens warranty?
A: All Zorsika projector lenses come with a 12-month warranty. For normal use and non-man-made damage (e.g., impacts, water ingress, unauthorized disassembly), contact after-sales service directly. The warranty period is based on the shipping document date.
Why Choose Zorsika
The WD508 is a commonly used lens for projects. Zorsika matches original parameters item by item, and each unit undergoes resolution testing before shipping, ensuring optical quality backed by data.
The Zorsika replacement lens with identical specs fits 2 Vivitek models, including RU75953 and RU70983. Enter WD508 in the Zorsika website query system to see the full compatibility list.
- Optical Matching: Focal length, throw ratio, and lens groups matched to original parameters
- Resolution Testing: Each unit tested before shipping; MTF data available
- Coating Process: Lens coatings on par with the original, reducing light loss
- Stable Supply: Supports bulk orders and project-based supply
In short: The lens is the optical core—don't gamble picture quality over a price difference. Zorsika projector lenses are made to original drawings, offering better overall value.
Note: Actual image performance depends on the projector's condition and installation environment; we recommend testing one unit before bulk purchasing.
What to Watch Out For When Swapping Lenses?
- Power off before swapping: Always shut down the projector and wait for the cooling fan to stop before removing or installing the lens to avoid damaging the mount with power on.
- Don't touch the glass: Fingerprints and oil directly affect image quality. Hold the lens barrel, not the glass. Use an air blower for dust; never dry-wipe with a cloth.
- Focus before tightening: Test focus after installation, then tighten the locking screws to prevent loosening and image drift over time.
- Keep the mount clean: Dust on the bayonet and contacts can cause poor connectivity; clean them while swapping the lens for peace of mind.
Related Query Links
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Lookup
- Projector Lamp / Lens / Air Filter Product Library
Purchase Inquiries
For consultation on the Zorsika WD508, project proposals, or the full compatibility list, 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 compatibility data in this article are from the Zorsika product database and are continuously updated; final confirmation is subject to actual inquiries.




