USED Canon 14mm F2.8 L II USM EF AF Lens

Ring USM (Ultrasonic motor) uses ultrasonic frequency vibrations to drive responsive, near-silent high speed auto focus. Good holding torque stops the focusing lens group with precision without overshoot. Full time manual focus override is available without having to switch out of AF. Two UD (ultra-low dispersion) glass lens element correct chromatic aberration to achieve high resolution and contrast, without color fringing on subject outlines. Two AL aspherical lens elements suppress aberrations for high image quality at all focal lengths. Equipped with a fixed, petal-type hood and a gelatin filter holder at the rear. Only lead free glass is used in the lens construction.