• 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
• Circular aperture diaphragm allowing striking blur effects
• Manual focusing enabled even during AF mode
• High resistance to dust and water droplets
• Only environmentally friendly lead-free glass used in lens construction

Ultra-Wide & Wide Lenses

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 condition.