This article is a complete selection guide for the Zorsika WK051 ultra-short-throw projector lens, covering 24 compatible Epson projector models, full specifications (throw ratio 0.46:1, MTF 70lp/mm center≥65%), a comparison table of overall specifications for each projector when equipped with this lens, selection and installation pitfalls, and frequently asked questions. For other lens models, please visit the Zorsika official website www.zorsika.com .
Zorsika WK051 Ultra-Short-Throw Projector Lens
Why Zorsika WK051 Is a Consistently Sought-After Lens for Buyers
The Zorsika WK051 is an ultra-short-throw projector lens (throw ratio 0.46:1), covering 24 mainstream Epson projector models. The most common challenges buyers face during selection are: high original lens prices, unstable supply cycles; and subpar aftermarket lens quality with MTF/resolution failing to meet standards. Addressing this pain point, Zorsika offers an alternative lens solution with original-equivalent specifications. All lenses undergo optical testing, with free replacement for non-human damage within the warranty period.
Zorsika WK051 Projector Lens Specifications
The following are the specifications of the Zorsika WK051 lens itself (from zorsika.com official data):
| Parameter | Value |
|---|---|
| F Number / Focal Length | 2.0 / 6.9mm |
| Lens Construction | 1P+16G |
| Recommended Screen Size (inches) | 500 |
| MTF (Modulation Transfer Function) | 70lp/mm center≥65% |
| Lens Dimensions | φ112mm*169mm |
| Throw Ratio | 0.46:1 |
| Resolution | 4K/2K |
| Vertical Lens Shift | 85.2% |
| Horizontal Lens Shift | 39.6% |
Compatible Epson Projector Models for Zorsika WK051 Lens (Total 24 Models)
The Zorsika WK051 lens is compatible with the following Epson projector models: The table below shows the overall specification performance of each Epson projector when equipped with the Zorsika WK051 lens. These parameters reflect the actual results after the lens and projector body are combined:
| Projector Model | Resolution | Brightness | Lens Zoom Ratio |
|---|---|---|---|
| Epson CB-L895E | 4K (3840 x 2160) | 8700 | 1.6X |
| Epson CB-L895U | 1920 x 1200 | 8700 | 1.6X |
| Epson CB-L890U | 1920 x 1200 | 8700 | 1.6X |
| Epson CB-L790U | 1920 x 1200 | 7900 | 1.6X |
| Epson CB-L690U | 1920 x 1200 | 7100 | 1.6X |
| Epson CB-L690E | 4K (3840 x 2160) | 7100 | 1.6X |
| Epson CB-L570U | WUXGA,1920 x 1200 | 5500 | 1.6 |
| Epson CB-L775U | WUXGA,1920 x 1200 | 7400 | 1.6 |
| Epson CB-L720U | WUXGA,1920 x 1200 | 7000 | 1.6 |
| Epson CB-L730U | WUXGA,1920 x 1200 | 7000 | 1.6 |
| Epson CB-L735U | WUXGA,1920 x 1200 | 7000 | 1.6 |
| Epson CB-L730W | 1280 x 800,WXGA | 7000 | 1.6 |
| Epson CB-L615U | WUXGA,1920 x 1200 | 6000 | 1.6 |
| Epson CB-L630W | 1280 x 800,WXGA | 6000 | 1.6 |
| Epson CB-L630U | WUXGA,1920 x 1200 | 6000 | 1.6 |
| Epson CB-L610 | 1024 x 768, XGA | 6000 | 1.6 |
| Epson CB-L610W | 1280 x 800,WXGA | 6000 | 1.6 |
| Epson CB-L610U | WUXGA,1920 x 1200 | 6000 | 1.6 |
| Epson CB-L520U | WUXGA,1920 x 1200 | 5000 | 1.6 |
| Epson CB-L530U | WUXGA,1920 x 1200 | 5200 | 1.6 |
| Epson CB-L520W | 1280 x 800,WXGA | 5200 | 1.6 |
| Epson CB-L500 | 1024 x 768, XGA | 5000 | 1.6 |
| Epson CB-L500W | 1280 x 800,WXGA | 5000 | 1.6 |
| Epson CB-L510U | WUXGA,1920 x 1200 | 5000 | 1.6 |
Selection and Installation Pitfalls
1. Confirm throw ratio and installation distance: Calculate the required throw ratio based on the room depth and target screen size. The optimal installation distance for an ultra-short-throw lens is within 0.5 meters to project 100 inches.
2. Verify lens shift range: Before installation, ensure that the projector's horizontal/vertical lens shift margin is sufficient to avoid image overflow or inability to center the image.
3. Confirm lens mount compatibility: The Zorsika WK051 lens uses the standard Epson projector lens mount. Please confirm with the sales team that your projector model is within the compatibility list before purchasing.
According to the Zorsika official maintenance manual, the Zorsika WK051 lens requires no special maintenance under normal usage conditions. It will operate stably for a long time as long as it is protected from severe vibration and high-temperature environments. For detailed optical parameters and compatible projector models, please visit the lens-7086 page on the zorsika.com Chinese website.
Supplementary Notes on Zorsika WK051
As an ultra-short-throw lens (Zorsika projector UST lens) for Zorsika projectors, the Zorsika WK051 is compatible with 24 mainstream Epson projector models. The lens is a precision optical component that plays a key role in light path transmission and image formation within the projector's optical system. All lenses provided by Zorsika undergo MTF testing (modulation transfer function test) and focus accuracy calibration to ensure the full rendering of 4K resolution. For lenses of other brands or focal lengths, please visit www.zorsika.com to inquire.
Related Reading: Projector Lens Library · All Epson Models · Lens Compatibility Inquiry
FAQ — Zorsika WK051 Frequently Asked Questions
Q: What does the throw ratio of the Zorsika WK051 lens mean?
A: Throw ratio = projection distance / image width. A smaller ratio means a larger image can be projected from the same distance. The Zorsika WK051 has a throw ratio of 0.46:1, making it an ultra-short-throw lens. It is recommended to back-calculate the achievable screen size based on the installation distance, or consult Zorsika sales for a selection calculation.
Q: Which projector models are compatible with the Zorsika WK051 lens?
A: The Zorsika WK051 lens is compatible with 24 Epson projector models. Please refer to the "Compatible Projector Models" table in this article. To confirm if a specific model is compatible, please contact Zorsika sales with a photo of the projector's nameplate. We will verify whether the lens and projector body match.
Q: What does the MTF (Modulation Transfer Function) of the lens represent?
A: MTF (Modulation Transfer Function) reflects the lens's ability to reproduce fine details. A higher value indicates sharper images. Professional projector lenses typically require MTF >50% @93lp/mm. The MTF specification of the Zorsika WK051 lens is 70lp/mm center≥65%. In 4K projection applications, MTF is the core metric for determining whether a lens truly supports 4K resolution.
Q: How to choose between an ultra-short-throw lens and a short-throw lens?
A: The core difference between ultra-short-throw (0.46:1) and short-throw (typically 0.4-1.0:1) lies in the installation distance: ultra-short-throw can project 100 inches from 0.3-0.5 meters, suitable for desktop interaction and electronic whiteboard replacement; short-throw requires 1-2 meters, ideal for ceiling mounting above blackboards in classrooms. If the room depth is < 2 meters, go for ultra-short-throw; if the depth is 2-4 meters, short-throw offers better cost-effectiveness.
Q: Does the Zorsika WK051 lens support 4K projection?
A: Yes. The Zorsika WK051 lens has an MTF specification of 70lp/mm center≥65%, meeting the 4K resolution standard (≥60% @93lp/mm). Paired with a 4K projector, it can output a full 4K image.
Q: What is the installation method for the Zorsika WK051 lens?
A: The Zorsika WK051 lens uses the standard Epson projector lens mount. Insert the lens into the lens compartment and turn it clockwise to lock it in place. The entire process takes approximately 30 seconds. For on-site installation support, you can contact Zorsika sales engineers for field service.
Purchase Inquiry
For information on the specific configuration, pricing, or alternative solutions for the Zorsika WK051 lens, please contact the Zorsika sales team. We offer 1-on-1 selection consultation, technical parameter comparison, on-site installation support, and other services.
- Website: www.zorsika.com
- Phone: 020-38551187
- Email: sales@zorsika.com
- Business Hours: Monday to Saturday 9:00-18:00
Data Source Statement
All lens models, specifications, and compatible projector models in this article are sourced from: zorsika.com official product page and the Zorsika database.