Dial in projection distance without redesigning the room. The Panasonic ET-D3LES20 1.7-2.4:1 zoom lens gives AV teams the throw flexibility needed to match screen size, mounting position, and architectural constraints with less compromise. For conference rooms, classrooms, control spaces, and other fixed installations, that range helps simplify projector placement while preserving image geometry and installation consistency. This lens is built for environments where precision matters more than convenience. Instead of forcing the projector into a single mounting point, the zoom range gives installers room to work around ceiling structure, sightlines, and existing infrastructure. That means fewer layout tradeoffs and a cleaner final result. For organizations standardizing on Panasonic projection platforms, the ET-D3LES20 supports a more controlled deployment process and helps protect the value of the projector system by matching the optics to the space. It is the kind of accessory that matters most when the room is already built and the image still has to land exactly where it should.