Professional wide-angle lens with an ultra-large maximum aperture of f/1.4. Employs a replicated aspherical lens element to suppress distortion and spherical aberration, and two UD lenses to correct lateral chromatic aberration. Waterproof and dust resistant properties make this lens suitable for taking pictures even in harsh weather conditions.
Brightest large-diameter f/1.4 high-performance wide-angle L lens in the 24mm class (as of July 2008)
UD glass and high precision GMo aspheric lenses correct chromatic aberration
Minimal flare and ghosting
Fast and silent AF via high-speed CPU, optimised AF algorithm, rear internal focusing and ring USM drive