At a glance
- Specifications
- SL-4K-122 Compatible Projector Models (3 Models, with Brightness/Resolution)
- About This Original Lens
- Genuine Product and Purchasing Information
- FAQ
- Q: How do I choose between an original lens and a replacement lens?
- Q: How do I confirm this lens works with my projector?
- Q: How do I select the throw ratio?
- Q: How is the SL-4K-122 guaranteed to be genuine?
- Q: What should I pay attention to when replacing the lens?
- Related Inquiry Portals
- Purchasing Inquiries
Genuine Digital Projection lens SL-4K-122, standard throw, throw ratio 1.13-1.72:1 (zoom), compatible with INSIGHT 4K Laser, INSIGHT Laser 8K, INSIGHT MLS projectors. Authorized supply, bulk orders available.


The Digital Projection SL-4K-122 is an original (OEM) lens for Digital Projection installation projectors, belonging to the Standard Throw category with a throw ratio of 1.13-1.72:1 (zoom). This article compiles its 3 compatible projector models, optical specifications, and purchasing considerations for quick compatibility verification by projector model.
Digital Projection Original Lens SL-4K-122Specifications
| Lens Model | SL-4K-122 |
| Brand (OEM) | Digital Projection (Digital Projection) |
| Compatible Panel / Chip | 0.95inch 3DLP(INSIGHT) |
| OEM Part No. | 115-631 |
| Remarks | Zoom confirmed on official website |
| Throw Ratio | 1.13-1.72:1 (zoom) |
| Product Type | Standard Throw |
| Number of Compatible Models | 3 models |
| OEM Product Page | Digital Projection Official Introduction |
The above specifications are sourced from OEM documentation and the Zorsika product database; a complete technical datasheet is available upon request from our sales team.
SL-4K-122 Compatible Projector Models (3 Models, with Brightness/Resolution)
The following are verified compatible projector models for the SL-4K-122, each with brightness and resolution; the compatible lens model for all is SL-4K-122:
| Projector Model | Brightness | Resolution | Lens Model |
|---|---|---|---|
| INSIGHT 4K Laser | — | — | SL-4K-122 |
| INSIGHT Laser 8K | — | — | SL-4K-122 |
| INSIGHT MLS | — | — | SL-4K-122 |
Note: Brightness/resolution is taken from the model database (refer to the unit's nameplate/user manual); lens compatibility is determined by the projector's lens mount and panel/chip size. For models not listed, contact Zorsika technical support for verification.
About This Original Lens
The SL-4K-122 is a Standard Throw lens manufactured by Digital Projection as an OEM product. Its optical construction, lens coatings, and body tolerances are matched to original projector standards, ensuring plug-and-play installation and stable imaging. For installation environments with restricted projection distance (e.g., short-distance large images, ultra-short-throw wall-mounted setups), selecting the correct throw ratio is more critical than choosing a generic lens.
This lens offers a throw ratio of 1.13-1.72:1 (zoom). Throw ratio = projection distance ÷ image width: the smaller the value, the larger the image (ideal for short distances in compact spaces); the larger the value, the greater the installation distance required. Work backward from your on-site installation distance and screen size to determine the required throw ratio range, then match it to this model.
Genuine Product and Purchasing Information
Zorsika supplies the Digital Projection original lens SL-4K-122 through authorized channels, complete with OEM packaging and traceable serial numbers, suitable for bulk procurement and project supply for installation projectors, conference rooms, classrooms, and similar applications.
- Genuine Product Guarantee: Sourced through official OEM channels, with OEM packaging and serial numbers; channel documentation can be requested for bulk projects to eliminate refurbished or unverified units.
- Compatibility Verification: Provide your projector model before ordering, and Zorsika technical support will verify against the compatible model list above to ensure a proper fit.
- Project Supply: The SL-4K-122 covers 3 projector models; common projects can be scheduled in advance to shorten lead times.
- Alternative Options: For budget-sensitive projects, Zorsika also offers equivalent replacement lenses with key specifications benchmarked against the OEM, allowing you to choose as needed.
Note: Actual imaging performance is affected by projector condition and installation environment; it is recommended to test one unit before large-volume orders.
FAQ
Q: How do I choose between an original lens and a replacement lens?
A: Original lenses are manufactured by Digital Projection with optical parameters and body tolerances calibrated to the original projector, making them ideal for projects with strict OEM consistency requirements; Zorsika replacement lenses are independently designed and manufactured to the same specifications, with throw ratio, image circle, and mount matched to the original unit, offering advantages in budget and lead time. Zorsika supplies both options—choose based on your project requirements.
Q: How do I confirm this lens works with my projector?
A: The projector's lens mount and panel/chip size are the determining factors; this article lists verified compatible models. Projectors of the same generation and brand often share lens mounts; if uncertain, photograph the unit's nameplate and send it to Zorsika technical support for confirmation.
Q: How do I select the throw ratio?
A: Throw ratio = projection distance ÷ image width. The smaller the value, the larger the image (short-throw/ultra-short-throw suits compact spaces at close range); the larger the value, the greater the installation distance required. Calculate the required throw ratio range from your installation distance and screen size, then match it to this model's focal range.
Q: How is the SL-4K-122 guaranteed to be genuine?
A: Zorsika supplies genuine products through OEM channels, complete with OEM packaging and traceable serial numbers; channel documentation can be requested for bulk projects to ensure the unit is not refurbished or a used disassembled part.
Q: What should I pay attention to when replacing the lens?
A: Always power off the projector and wait for the cooling fan to stop before removal/installation; hold the lens by the barrel without touching the glass, and use an air blower for dust; after installation, test focus before tightening the locking screws, and clean the mount and contacts as you go.
Related Inquiry Portals
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Lookup
- Projector Lamp / Lens / Air Filter Product Library
Purchasing Inquiries
For consultation on the Digital Projection original lens SL-4K-122, project proposals, or a complete compatible model list, please contact us through the following channels:
- 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 projector data in this article are sourced from OEM documentation and the Zorsika product database; data is continuously updated and subject to confirmation at the time of inquiry.