Camera, Drone & Photo Accessories. Flashes & Flash Accessories. Other Cameras & Photo. Video Production & Editing. Replacement Parts & Tools. Camera Manuals & Guides. Canon EF 11-24mm F/4L USM Ultra-Wide Angle Zoom Lens 9520B002. EF Mount L-Series Lens/Full-Frame Format Constant f/4 Maximum Aperture Super UD, UD, and 4 Aspherical Elements SWC, Air Sphere, and Fluorine Coatings Ring-Type USM Autofocus Motor Internal Focus; Full-Time Manual Focus Weather-Resistant Design Rounded 9-Blade Diaphragm. L-series ultra-wide zoom lens with an impressive 11mm starting focal length. Focal Length & Maximum Aperture: 11-24mm f/4, Closest Focusing Distance : 11 in. New optical design and the use of one Super UD element and one UD lens element. Subwavelength Coating (SWC) and Air Sphere Coating (ASC), Inner focusing, ring USM, a high-speed CPU and optimized AF algorithms. Most manufactures do not include a paper manual. A pdf manual will be provided upon request. Prices change frequently and we do not offer price protection. We reserve the right to cancel any order that does not meet our verification process. Our packages are insured and may require a signature. Join Our Mailing List. Sign up today to receive special insider notifications of deals, promotions, and new items!