Panasonic ET-D3QT800 5.0 – 7.8:1 Zoom lens for PT-RQ50 projector with Lens Memory and Stepping Motor

Product Overview

The Panasonic ET-D3QT800 is the longest-throw zoom lens in the PT-RQ50K lens lineup, delivering a 4.97 to 7.76:1 throw ratio in 4K 17:9 projection. With a 1.6x zoom range and a 156.5 to 243.1 mm focal length, it is built for very deep large-venue installations where the PT-RQ50K 3-chip DLP laser projector sits far from the screen. Auto lens identification, a stepping motor and lens memory make it suited to permanent commercial AV systems and rental/staging.

Product Description

This long-throw PT-RQ50K zoom lens addresses projection booths and rear positions in auditoriums, arenas and large houses of worship, where a long focal length is needed to fill the screen from a distance. The stepping motor supports motorized zoom and focus, while lens memory recalls positions for events that switch aspect ratios mid-show. Auto lens identification lets the projector recognize the optic and apply the correct geometry. For shorter distances on the same projector, the store also stocks the ET-D3QT700 and ET-D3QT600. The host projector is the PT-RQ50KU.

Key Features

• PT-RQ50K Dedicated Fit — Purpose-built optic for the Panasonic PT-RQ50K 3DLP laser projector.
• Longest-Throw 4.97-7.76:1 Ratio — Fills large screens from deep projection-booth distances.
• 1.6x Motorized Zoom — 156.5 to 243.1 mm focal length adjusts image size without relocating the chassis.
• Lens Memory — Stores zoom, focus and shift positions for quick aspect-ratio changes during events.
• Stepping Motor — Provides precise, repeatable motorized lens control.
• Auto Lens Identification — The projector detects the lens and applies the correct settings.

Typical Applications

• Auditorium and arena long-throw projection
• House of worship main-screen imaging from a rear booth
• Broadcast studio and large stage backdrops
• Multi-purpose rooms with very deep projection distances

Technical Specifications

Specifications sourced from Panasonic / vendor data. Confirm exact lens-shift range and firmware lens-memory behavior against the current Panasonic ET-D3QT800 spec sheet and PT-RQ50K lens compatibility chart before specifying.

Frequently Asked Questions

Which projector does the ET-D3QT800 fit? It is dedicated to the Panasonic PT-RQ50K 3DLP laser projector and is not cross-compatible with other Panasonic lens mounts.

When should I choose the ET-D3QT800 over a shorter lens? Choose it when the projector must sit at the deepest distances; its 4.97 to 7.76:1 ratio is the longest in the PT-RQ50K lineup.

Does it support motorized control and presets? Yes. A stepping motor drives motorized zoom and focus, and lens memory stores positions for fast aspect-ratio changes.

How does the projector know which lens is installed? Auto lens identification lets the PT-RQ50K detect the ET-D3QT800 and apply the correct geometry and settings.

What warranty applies? Coverage follows Panasonic's standard professional lens warranty; confirm current terms at the time of purchase.