Compact and lightweight design, this DC-iris lens is designed to maximize optical performance with high quality aspherical lens, integrating Fujinon's Aspherical Technology (AT) using low-dispersion glass with a high-reflective index, offering sharper, even better quality images and higher optical performance. The lens features fast aperture and is equipped with built-in ND (Neutral Density) filters for use with light sensitive cameras, plus metal CS mounts with locking screws and DC-iris system. The focal length is 15-50 mm and the lens fast aperture (F-number) is 1.5.