L-series ultra-wide zoom lens with an impressive 11mm starting focal length, delivering high-quality, expressive images.
New optical design and the use of one Super UD element and one UD lens element helps significantly reduce chromatic aberration.
Four aspheric lens elements help minimize distortion from the center of the image to the periphery and across the entire zoom range.
Subwavelength Coating (SWC) and Air Sphere Coating (ASC) help to significantly reduce flare and ghosting.
Highly resistant to dust and water for amazing durability enabling shooting even in harsh conditions.
Inner focusing, ring USM, a high-speed CPU and optimized AF algorithms for fast and accurate autofocusing.

Order now: Canon EF 11-24mm f/4L USM Wide Angle Zoom Lens [Refurb] only $1499 from canon.com