At a glance
- Zorsika WE421 Lens Specification Table
- Zorsika WE421 Projector Lens Parameters
- Zorsika WE421 — Why This Lens Continues to Be a Focus for Procurement
- Key Points to Avoid Pitfalls in Selection and Installation
- Supplementary Notes on Zorsika WE421
- Related Reading:
- FAQ — Zorsika WE421 Frequently Asked Questions
- Q: What does the throw ratio of the Zorsika WE421 lens mean?
- Q: Which projector models are compatible with the Zorsika WE421 lens?
- Q: What does the MTF (Modulation Transfer Function) of the lens represent?
- Q: Does the lens require recalibration after installation?
- Q: Does the Zorsika WE421 lens support 4K projection?
- Q: What is the installation method for the Zorsika WE421 lens?
- Purchase Inquiry
- Data Source Description
Zorsika WE421 is a compatible lens for APPOTRONICS projectors, applicable to 11 models, customized according to original specifications, and can be directly replaced and installed.
Zorsika WE421 Ultra-Short Throw Projector Lens — 11...
Zorsika WE421 Lens Specification Table
| Specification | Parameter |
|---|---|
| Brand | Zorsika |
| Zorsika Model | WE421 |
| Throw Ratio | 0.7-0.85:1 |
| F-number / Focal Length | 2.1(w)~2.2(t) /7.42mm(w)~8.90mm(t) |
| Lens Composition | 1APS+17G |
| Recommended Screen Size (inches) | 300 |
| MTF (Modulation Transfer Function) | >60% @93lp/mm |
| Lens Dimensions | φ84x192mm |
| Resolution | 4K |
| Horizontal Shift | ±80% |
| Vertical Shift | ±45% |
This article is a complete selection guide for the Zorsika WE421 projector lens, covering 11 compatible APPOTRONICS (APPOTRONICS) projector models, full specifications (throw ratio, MTF, F-number, lens composition), a comparison table of overall specifications for each projector when equipped with this lens, tips for selection and installation, and frequently asked questions. For other lens models, please visit the Zorsika official website www.zorsika.com.
Zorsika WE421 Projector Lens Parameters
Zorsika WE421 — Why This Lens Continues to Be a Focus for Procurement
The Zorsika WE421 is compatible with mainstream APPOTRONICS projector models. The most common issues procurement faces during selection are: high original lens prices, unstable supply cycles, inconsistent quality of third-party lenses, and substandard MTF/resolution. Zorsika addresses these pain points by offering an alternative lens solution with the same specifications as the original, all optically tested and covered by a warranty for free replacement due to non-human damage.
Key Points to Avoid Pitfalls in Selection and Installation
- Confirm Throw Ratio and Installation Distance — Calculate the required throw ratio based on room depth and target screen size. For ultra-short throw lenses, the optimal installation distance is 1-2 meters for a 100-inch screen;
- Check Shift Range — Before installation, ensure the projector's horizontal/vertical shift margin to avoid image overflow or inability to center the image;
- Verify Mount Compatibility — The Zorsika WE421 lens uses the standard mount for APPOTRONICS projectors. Please confirm with sales that your projector model is on the compatibility list before purchasing.
Supplementary Notes on Zorsika WE421
As a Zorsika projector lens (Zorsika projector lens), the Zorsika WE421 is suitable for 11 APPOTRONICS projector models. Lenses are precision optical components (precision optical component) that play a critical role in the optical system of a projector for light transmission and image formation. All lenses provided by Zorsika undergo MTF testing (modulation transfer function test) and focus accuracy calibration to ensure the full presentation of 4K resolution (4K resolution). For lenses of other brands or focal lengths, please visit www.zorsika.com.
Related Reading:
APPOTRONICS WE421 Lens Compatible Projector Models (11 Models)
| Projector Model | Resolution | Brightness | Lens Zoom Ratio |
|---|---|---|---|
| AL-DK750S | 4K (3840 x 2160 pixels) | 7500 | 0.5, 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-DK650S | 4K (3840 x 2160 pixels) | 6500 | 0.5, 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MU530 | WUXGA,1920 x 1200 | 5200 | 0.5, 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MU630 | WUXGA,1920 x 1200 | 6200 | 0.5 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MU505 | WUXGA,1920 x 1200 | 4200 | 0.5 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MU515 | WUXGA,1920 x 1200 | 5200 | 0.5 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MK530 | 4K (3840 x 2160 pixels) | 5400 | 0.5 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MU625 | WUXGA,1920 x 1200 | 6200 | 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MU525 | WUXGA,1920 x 1200 | 5200 | 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MK525 | 4K (3840 x 2160) | 5200 | 0.7-0.9, 1.0-1.6, 1.54-2.48 |
| AL-MK625 | 4K (3840 x 2160) | 6200 | 0.7-0.9, 1.0-1.6, 1.54-2.48 |
FAQ — Zorsika WE421 Frequently Asked Questions
Q: What does the throw ratio of the Zorsika WE421 lens mean?
A: Throw ratio = projection distance / image width. A smaller ratio means a larger image from the same distance. It is recommended to calculate the attainable screen size based on the installation distance, or consult Zorsika sales for selection calculation.
Q: Which projector models are compatible with the Zorsika WE421 lens?
A: The Zorsika WE421 lens is compatible with 11 APPOTRONICS projector models. For details, see the "Compatible Projector Models" table in this article. To confirm compatibility with a specific model, please contact Zorsika sales and provide a photo of the model label; we will verify if the lens matches the projector.
Q: What does the MTF (Modulation Transfer Function) of the lens represent?
A: MTF (Modulation Transfer Function) reflects the lens's ability to reproduce detail; a higher value means sharper images. A professional projector lens generally requires MTF >50% @93lp/mm. The Zorsika WE421 lens has an MTF indicator of >60% @93lp/mm. In 4K projection applications, MTF is a core indicator for judging whether the lens truly supports 4K resolution.
Q: Does the lens require recalibration after installation?
A: No — the mount is identical to the original. After installation, simply fine-tune the focus and zoom according to the actual projection distance. If anomalies (black edges/light leakage/out-of-focus) occur, first check whether the lens is fully seated in the mount, then verify the projector firmware version matches the lens.
Q: Does the Zorsika WE421 lens support 4K projection?
A: Yes. The Zorsika WE421 lens has an MTF indicator >60% @93lp/mm, reaching the 4K resolution standard (≥60% @93lp/mm). When paired with an 4K projector, it can output a full 4K image.
Q: What is the installation method for the Zorsika WE421 lens?
A: The Zorsika WE421 lens uses the standard lens mount for APPOTRONICS projectors. Insert it into the lens bay and rotate clockwise to lock — the entire process takes about 30 seconds. For on-site installation support, you can contact Zorsika sales engineers for on-site service.
Purchase Inquiry
For specific configurations, pricing, stock, or alternative solutions for the Zorsika WE421 lens, please contact the Zorsika sales team. We provide 1-on-1 selection consultation, technical parameter comparison, on-site installation support, and other services.
Website: www.zorsika.com
Tel: 020-38551187
Email: sales@zorsika.com
Business hours: Monday to Saturday 9:00-18:00, reply within 24 hours (APPOTRONICS Official Technical Documentation)
Data Source Description
All lens models, specifications, and compatible projector model data in this article are sourced from:
- Official product page at zorsika.com
- Zorsika database