NEC Display NP47ZL - 21.80 mm to 49.80 mmf/2.66 - Standard Throw Zoom LensThe NEC Display NP47ZL standard throw zoom lens is engineered to unlock exceptional versatility for NEC projectors. With a 21. 80 mm to 49. 80 mm focal length range and a bright f 2. 66 aperture, this lens delivers sharp, high contrast images across a wide throw spectrum. Its compact 11. 2 inch length and 4. 4 inch diameter keep installation clean and unobtrusive, making it ideal for classrooms, conference rooms, lecture halls, and mixed use spaces.