The NEC NP17ZL 1.25-1.79:1 Projector Zoom Lens is an optional short-throw accessory designed to provide installation flexibility for select high-performance NEC projectors, such as models in the PX series. This bayonet-style lens allows for a wide range of image sizing and placement options, making it ideal for various environments including conference rooms, lecture halls, and exhibitions where precise image alignment is necessary.

The lens features a versatile throw ratio of 1.25-1.79:1 and a focal length of 18.7mm to 26.5mm, enabling large image projection from a relatively short distance. Depending on the specific projector model (like the 4K compatible versions of the lens, such as the NP17ZL-4K), it may include motorized zoom and focus capabilities, along with a lens memory function, which simplifies frequent operation and adjustments. The robust construction ensures long-term reliability, and its user-friendly design allows for easy, tool-free installation into compatible projectors. It also supports significant vertical and horizontal lens shift capabilities to align the image without physically moving the projector unit.