Dual-Motor AF System: Combines a Voice Coil Motor (VCM) with a Nano USM for lightning-fast, silent, and smooth autofocus—perfect for both high-end video and fast-action stills.

Astro-Optimized Optics: Includes 3 GMo Aspherical elements specifically designed to suppress sagittal coma flare, ensuring stars remain sharp pinpoints from corner to corner.

Elite Glass Construction: The first Canon ultra-wide to feature a Fluorite element, alongside UD and Blue Spectrum Refractive (BR) optics to virtually eliminate chromatic aberration.

Dedicated Iris Ring: Features a physical, smooth-action aperture ring for tactile manual control during video recording (compatible with newer EOS R series bodies).

Ultra-Lightweight Hybrid Design: Weighs only 578g, meticulously balanced to match other f/1.4 VCM primes, making it ideal for fast lens swaps on gimbals and handheld rigs.

Rear Gelatin Filter Slot: Includes a built-in rear filter holder and a cutting template, allowing for the use of ND and creative filters without bulky front-mount systems.

11-Blade Circular Aperture: Delivers incredibly smooth, cinematic bokeh and striking 22-point starbursts when stopped down.

Advanced Flare Suppression: Utilizes Air Sphere Coating (ASC) and Sub-wavelength Structure Coating (SWC) to minimize ghosting and flare in challenging backlit conditions.

L-Series Durability: Built to professional standards with full weather-sealing and a protective fluorine coating on the front element to repel water, oil, and dust.