At a glance
- Zorsika SC290 Lens Specifications
- Zorsika SC290 Projector Lens Parameters
- Why Zorsika SC290 is a Lens Continuously Followed by Buyers
- Key Points to Avoid Pitfalls in Selection and Installation
- Additional Notes on Zorsika SC290
- Related Reading:
- FAQ — Zorsika SC290 Frequently Asked Questions
- Q: What does the throw ratio of the Zorsika SC290 lens mean?
- Q: Which projector models are compatible with the Zorsika SC290 lens?
- Q: What does the MTF Modulation Transfer Function of the lens represent?
- Q: Do I need to readjust after installing the lens?
- Q: Does the Zorsika SC290 lens support 4K projection?
- Q: What is the installation method for the Zorsika SC290 lens?
- Purchase Inquiry
- Data Source Statement
Zorsika SC290 is a compatible lens for APPOTRONICS projectors, applicable to 5 models, customized according to original specifications, and can be directly replaced and installed.
Zorsika SC290 Ultra-Short Throw Projector Lens — 5...

Zorsika SC290 Lens Specifications
| Specification | Parameter |
|---|---|
| Brand | Zorsika |
| Zorsika Model | SC290 |
| Throw Ratio | 1.26-1.95:1 |
| F Number / Focal Length | 2.0-2.4/18.72~29mm |
| Recommended Screen Size (inches) | 500 |
| MTF Modulation Transfer Function | >60% @ 67lp/mm |
| Lens Dimensions | φ105x203mm |
| Resolution | 4K |
| Horizontal Shift | 110% |
| Vertical Shift | 50% |
This article is a complete selection guide for the Zorsika SC290 projector lens, covering 5 APPOTRONICS compatible models, full specifications (throw ratio, MTF, F-number, lens construction), a comparison table of overall specifications for each projector when equipped with this lens, key points to avoid pitfalls in selection and installation, and a FAQ section. For other lens models, please visit the Zorsika official website www.zorsika.com.
Zorsika SC290 Projector Lens Parameters
Why Zorsika SC290 is a Lens Continuously Followed by Buyers
Zorsika SC290 is compatible with mainstream APPOTRONICS projector models. The most common challenges buyers face during selection are: high OEM lens prices, unstable supply cycles, and uneven quality of third-party lenses with substandard MTF/resolution. Zorsika addresses these pain points by providing an alternative lens solution with the same specifications as the original, all of which have passed optical tests and are covered by a free replacement warranty for non-artificial damage during the warranty period.
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. The optimal installation distance for a short-throw lens is 1-2 meters for a 100-inch screen;
- Check shift range — Before installation, ensure sufficient horizontal/vertical shift margin for the projector position to avoid image overflow or inability to center the image;
- Confirm body mount compatibility — The Zorsika SC290 lens uses the standard APPOTRONICS projector mount. Please confirm with sales that your projector model is on the compatibility list before purchasing.
Additional Notes on Zorsika SC290
As a Zorsika projector lens, Zorsika SC290 is suitable for 5 APPOTRONICS projector models. The lens is a precision optical component that plays a key role in the optical system of the projector, handling 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 other brands or focal length lenses, please visit www.zorsika.com.
Related Reading:
APPOTRONICS SC290 Lens Compatible Projector Models (5 in total)
| Projector Model | Resolution | Brightness | Lens Zoom Ratio |
|---|---|---|---|
| AL-FU715 | WUXGA,1920 x 1200 | 8000 | 0.5 0.62 0.8 1.23-1.97 1.62~2.96 2.86-4.85 4.68-7.96 |
| AL-FU10K | WUXGA,1920 x 1200 | 1000 | 0.5 0.62 0.8 1.23-1.97 1.62~2.96 2.86-4.85 4.68-7.96 |
| AL-FU705 | WUXGA,1920 x 1200 | 7400 | 0.5 0.62 0.8 1.23-1.97 1.62~2.96 2.86-4.85 4.68-7.96 |
| AL-FU805 | WUXGA,1920 x 1200 | 8400 | 0.5 0.62 0.8 1.23-1.97 1.62~2.96 2.86-4.85 4.68-7.96 |
| AL-FU905 | WUXGA,1920 x 1200 | 9000 | 0.5 0.62 0.8 1.23-1.97 1.62~2.96 2.86-4.85 4.68-7.96 |
FAQ — Zorsika SC290 Frequently Asked Questions
Q: What does the throw ratio of the Zorsika SC290 lens mean?
A: Throw ratio = projection distance / image width. A smaller ratio means a larger image from the same distance. We recommend calculating the achievable screen size based on the installation distance, or consulting Zorsika sales for selection calculations.
Q: Which projector models are compatible with the Zorsika SC290 lens?
A: The Zorsika SC290 lens is suitable for 5 APPOTRONICS projector models. Please refer to the "Compatible Projector Models" table in this article. To confirm compatibility with a specific model, contact Zorsika sales with a photo of the projector's nameplate, and we will verify if the lens and 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 details; higher values indicate sharper images. Professional projection lenses generally require MTF >50% @93lp/mm. The MTF specification for the Zorsika SC290 lens is >60% @93lp/mm. In 4K projection applications, MTF is a key indicator for determining whether the lens truly supports 4K resolution.
Q: Do I need to readjust after installing the lens?
A: No — the mount is consistent with the OEM lens. After installation, you only need to fine-tune focus and zoom according to the actual projection distance. If image anomalies occur (black edges, light leakage, out of focus), first check whether the lens is fully seated in the mount, then verify that the projector firmware version matches the lens.
Q: Does the Zorsika SC290 lens support 4K projection?
A: Yes. The Zorsika SC290 lens has an MTF specification >60% @93lp/mm, 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 SC290 lens?
A: The Zorsika SC290 lens uses the standard APPOTRONICS projector lens mount. Insert it into the lens bay and rotate clockwise to lock, taking about 30 seconds. For on-site installation support, contact Zorsika sales engineers for on-site service.
Purchase Inquiry
For details on configuration, pricing, inventory, or alternative solutions for the Zorsika SC290 lens, please contact the Zorsika sales team. We offer 1-on-1 selection consulting, technical parameter comparisons, and on-site installation support.
Official website: www.zorsika.com
Phone: 020-38551187
Email: sales@zorsika.com
Working hours: Monday to Saturday 9:00-18:00, 24 hours (APPOTRONICS official technical documentation) response time
Data Source Statement
All lens models, specifications, and compatible projector data in this article are sourced from:
- zorsika.com official product pages
- Zorsika database