At a glance
- Specifications
- NP51ZL Short Zoom Compatible Projector Models (4 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 can I ensure the NP51ZL Short Zoom is genuine?
- Q: What should I pay attention to when replacing the lens?
- Q: What is the warranty period for the lens?
- Related Inquiry Links
- Purchasing Consultation
NEC original lens NP51ZL Short Zoom, short throw, throw ratio 0.53-0.65:1, compatible with 4 NEC projectors: PA1505UL-B, PA1505UL-W, PA1705UL-B, PA1705UL-W. Genuine supply, bulk orders available for projects.
The NEC NP51ZL Short Zoom is an original (OEM) lens for NEC installation projectors, classified as a short throw lens with a throw ratio of 0.53-0.65:1. This article compiles its 4 compatible projector models, optical specifications, and purchasing considerations, making it easy to quickly verify compatibility by projector model.

Specifications
| Lens Model | NP51ZL Short Zoom |
| Brand (Original) | NEC (NEC) |
| Throw Ratio | 0.53-0.65:1 |
| Product Type | Short Throw |
| Number of Compatible Models | 4 models |
| Original Product Page | NEC Official Introduction |
The specifications above are sourced from original manufacturer data and the Zorsika product database; a full technical datasheet is available upon request from our sales team.
NP51ZL Short Zoom Compatible Projector Models (4 Models with Brightness/Resolution)
The following are verified compatible projector models for the NP51ZL Short Zoom, each with brightness and resolution; the compatible lens model for all is NP51ZL Short Zoom:
| Projector Model | Brightness | Resolution | Lens Model |
|---|---|---|---|
| PA1505UL-B | 14000 lumens | 1920x1200 | NP51ZL Short Zoom |
| PA1505UL-W | 14000 lumens | 1920x1200 | NP51ZL Short Zoom |
| PA1705UL-B | 16000 lumens | 1920x1200 | NP51ZL Short Zoom |
| PA1705UL-W | 16000 lumens | 1920x1200 | NP51ZL Short Zoom |
Note: Brightness and resolution are 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
NEC NP51ZL Short Zoom Lens
The NP51ZL Short Zoom is an original short throw lens manufactured by NEC, with optical construction, lens coatings, and body tolerances all matched to original equipment standards—ready to install and delivering stable imaging. For installation environments with limited projection distance (e.g., large images from short distances, ultra-short throw against a wall), selecting the correct throw ratio is more critical than choosing a generic lens.
This lens features a throw ratio of 0.53-0.65:1. Throw ratio = projection distance ÷ image width: a smaller value produces a larger image (ideal for close-range, compact spaces), while a larger value requires a greater installation distance. Work backward from your 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 genuine NEC original lens NP51ZL Short Zoom through authorized channels, complete with original packaging and traceable serial numbers—suitable for bulk procurement and project supply in installation projectors, conference rooms, classrooms, and similar applications.
- Genuine Product Guarantee: Sourced through official authorized channels, with original packaging and serial numbers; channel documentation can be requested for bulk projects to ensure no refurbished or unverified units.
- Compatibility Verification: Provide your projector model before ordering, and Zorsika technical support will confirm against the compatible model list above to avoid installation issues.
- Project Supply: The NP51ZL Short Zoom covers 4 models; common projects can be scheduled in advance to shorten lead times.
- Alternative Options: If budget is a concern, Zorsika also offers equivalent replacement lenses with key specifications benchmarked against the original, allowing you to choose based on your needs.
Note: Actual imaging performance depends on projector condition and installation environment; for large orders, we recommend testing one unit first.
FAQ
Q: How do I choose between an original lens and a replacement lens?
A: Original lenses are manufactured by NEC, with optical parameters and body tolerances calibrated to the original unit, making them ideal for projects with strict requirements for original consistency; 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: Compatibility is determined by the projector's lens mount and panel/chip size; this article lists verified compatible models. Projectors from the same generation and brand often share mounts—if unsure, photograph the 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. 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 from your installation distance and screen size, then match it to this model's focal range.
Q: How can I ensure the NP51ZL Short Zoom is genuine?
A: Zorsika supplies genuine products through original manufacturer channels, complete with original packaging and traceable serial numbers; channel documentation can be requested for bulk projects to ensure no refurbished or second-hand units.
Q: What should I pay attention to when replacing the lens?
A: Before removal, ensure the projector is powered off and the cooling fan has stopped; hold the lens barrel without touching the glass, use a blower for dust; after installation, test focus before tightening the locking screws, and clean the mount and contacts as you go.
Q: What is the warranty period for the lens?
A: Zorsika offers a 12-month warranty on all projector lenses; for normal use and non-man-made damage (e.g., impact, water ingress, unauthorized disassembly), contact after-sales service directly, with the warranty period based on the shipping invoice date.
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 the NEC original lens NP51ZL Short Zoom, project proposals, or a complete compatible model list, 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
Lens models and compatible projector data in this article are sourced from original manufacturer materials and the Zorsika product database; data is continuously updated and subject to final confirmation during inquiry.