Sharp NP31ZL-4K – 0.74-0.93:1 Zoom Lens with Lens Memory for PX1005QL

Product Overview

The Sharp NEC NP31ZL-4K is a 0.74-0.93:1 short-throw zoom projector lens built for the NP-PX1005QL 4K UHD laser installation projector. This 4K projector lens gives AV integrators a short-throw option for large-venue projection where the projector must sit close to the screen — staging, rear-projection rooms, and compact auditoriums. Motorized zoom, focus, and lens shift with a built-in lens memory function make commercial AV installation and recurring multi-format events faster to set up and repeat.

Product Description

Large-venue 4K projection often runs into physical constraints: shallow booths, low trusses, or rear-projection cavities with limited depth. The NP31ZL-4K addresses these with a 0.74 to 0.93:1 throw ratio that fills screens from 40 to 500 inches diagonal, so a ceiling- or truss-mounted NP-PX1005QL can produce a very large image from a short distance. The bayonet-style mount allows quick lens exchange in the field, which is valuable for rental and staging companies that reconfigure projectors between events.

All adjustments are motorized. Zoom, focus, and lens shift can be driven from the remote or the projector's network control system, and the lens memory function stores position presets — a practical feature in multi-purpose rooms and broadcast environments where the projector alternates between screen formats or aspect ratios. Lens shift range of +50%/-30% vertical and +20%/-10% horizontal lets installers align the image precisely without physically repositioning the projector, reducing rigging time during AV system integration.

Optically, the lens delivers an f/1.96 to f/2.3 aperture across an 11.3 to 14.1mm focal length range, preserving the brightness and detail of the PX1005QL's 10,000-lumen 4K laser light engine. It is verified compatible with the NP-PX1005QL-B and NP-PX1005QL-W families, including the -18 and -R variants. If you are pairing a lens with a PX Series lamp or laser model instead, see the Sharp NEC NP31ZL short-throw zoom lens.

Key Features

• 0.74-0.93:1 Short-Throw Ratio — Produces a large 4K image from a short distance for shallow venues and rear-projection setups.
• Lens Memory Function — Stores zoom, focus, and shift presets so recurring screen configurations recall instantly.
• Motorized Zoom and Focus — Remote-controlled adjustment eliminates ladder trips to a truss- or ceiling-mounted projector.
• Powered Lens Shift — +50%/-30% vertical and +20%/-10% horizontal shift aligns the image without moving the projector mount.
• Bayonet-Style Quick Exchange — Field-swappable design suits rental, staging, and multi-venue deployments.
• 40 to 500 Inch Projection Size — Scales from meeting-room screens to arena-grade surfaces.
• Bright f/1.96-2.3 Aperture — Maintains light output from the PX1005QL 4K laser engine across the zoom range.
• Wide Operating Range — Rated for -25 to 50°C operation, suitable for demanding installation environments.

Typical Applications

• Auditorium
• Broadcast studio
• House of worship
• Multi-purpose room
• All-hands room
• Government space

Technical Specifications

Frequently Asked Questions

Which projectors does the NP31ZL-4K fit?

The NP31ZL-4K is designed for the Sharp NEC NP-PX1005QL 4K UHD laser installation projector, including the NP-PX1005QL-B, NP-PX1005QL-B-18, NP-PX1005QL-W, NP-PX1005QL-W-18, and NP-PX1005QL-W-R variants.

What does the lens memory function do?

Lens memory stores zoom, focus, and lens shift positions as presets on the projector. In venues that switch between screen sizes or aspect ratios — a multi-purpose room running presentations by day and cinema-format content by night — the stored position recalls at the push of a button.

Can the lens be installed in the field?

Yes. The bayonet-style mount is designed for quick exchange without special tools, so integrators and staging crews can swap lenses on site as venue requirements change.

How is the NP31ZL-4K different from the NP31ZL?

The NP31ZL-4K is matched to the 4K NP-PX1005QL and adds lens memory, while the NP31ZL serves the WUXGA/WXGA PX Series (PX750U, PX803UL, PX1004UL and related models). The two are not interchangeable across projector families.

Does the lens support remote adjustment for ceiling installations?

Yes. Zoom, focus, and shift are fully motorized and controllable from the projector remote or over the projector's network control interface, so alignment can be done from floor level after rigging.

Can Creation Networks help verify compatibility before I order?

Yes. Contact our commercial AV team with your projector model and venue dimensions and we will confirm lens fit and expected image size before you purchase.