Digital Projection Original Lens SL-4K-121 (Standard Throw): Compatible with 3 Models & Throw Ratio

The Digital Projection SL-4K-121 is an original (OEM) lens for Digital Projection professional projectors. It belongs to the Standard Throw category with a fixed throw ratio of 0.93:1. This article compiles its 3 compatible projector models, optical specifications, and purchasing considerations for quick compatibility verification by projector model.

Specifications

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-121 Compatible Projector Models (3 Models with Brightness/Resolution)

The following are verified compatible projector models for the SL-4K-121, each with brightness and resolution; the compatible lens model for all is SL-4K-121:

Note: Brightness/resolution data is taken from the model database (refer to the unit's nameplate/manual for accuracy); lens compatibility is determined by the projector's lens mount and panel/chip size. For models not listed, please contact Zorsika technical support for confirmation.

About This Original Lens

The SL-4K-121 is a Standard Throw lens manufactured by Digital Projection as an OEM product. Its optical structure, lens coatings, and body tolerances are matched to original machine standards, ensuring plug-and-play installation and stable imaging. For installation environments with limited projection distance (e.g., short-distance large images, ultra-short-throw wall-mounted setups), choosing the correct throw ratio is more critical than opting for a generic lens.

This lens has a throw ratio of 0.93:1 (fixed). Throw ratio = projection distance ÷ image width: a smaller value means a larger image (ideal for close-range, compact spaces), while a larger value requires a greater installation distance. Calculate the required throw ratio range based on your installation distance and screen size, then match it to this model.

Genuine Product and Purchasing Information

Zorsika offers genuine Digital Projection original lens SL-4K-121 through authorized channels, complete with OEM packaging and traceable serial numbers, suitable for bulk procurement and project supply in professional projection, conference room, and classroom 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 the 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-121 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 to OEM standards, allowing flexible selection based on needs.

Note: Actual imaging performance is affected by projector condition and installation environment; it is recommended to test one unit before large-volume procurement.

FAQ

Q: How to 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 original machine standards, ideal for projects requiring strict OEM consistency; Zorsika replacement lenses are independently designed and manufactured to the same specifications, with throw ratio, image circle, and mount matched to the original machine, 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: Compatibility is determined by the projector's lens mount and panel/chip size; verified compatible models are listed in this article. 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 to choose the throw ratio?

A: Throw ratio = projection distance ÷ image width. A smaller value produces a larger image (short-throw/ultra-short-throw suits close-range, compact spaces), while a larger value requires a greater installation distance. Calculate the required throw ratio range based on installation distance and screen size, then match it to this model's focal length.

Q: How is the SL-4K-121 guaranteed to be genuine?

A: Zorsika supplies genuine products through OEM channels, 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 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 needed.

Related Inquiry Links

• Zorsika Technical Support Center
• Projector Brand and Compatible Model Lookup
• Projector Lamp / Lens / Air Filter Product Library

Purchasing Consultation

For consultation on Digital Projection original lens SL-4K-121 solutions, project proposals, or a complete compatible model list, please 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 compatible projector data in this article are sourced from OEM documentation and the Zorsika product database; data is continuously updated and subject to final confirmation at the time of inquiry.