Canon EF 11-24mm f/4L USM Wide-angle Zoom Lens for EF-Mount Full-frame Digital SLR / DSLR Cameras

EF11-24mm f/4L USM
Canon's new EF11-24mm f/4L USM is an ultra wide-angle zoom lens, starting at 11 mm, the widest angle in it class and an f/4L zoom lens with the high image quality appropriate for L lenses. With other features such as special lens and coatings built in it, ghosting and distortions are well controlled. As the result, the EF11-24mm f/4L USM creates surreal images with clarity and widest angle. Effective arrangement of the four aspherical lenses resulted in proper correction of distortion across all zoom range.


Features:
• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/4 to f/22
• One Super UD and One UD Element
• Four Aspherical Elements
• SWC, Air Sphere, and Fluorine Coatings
• Ring-Type Ultrasonic Motor AF System
• Weather-Sealed Construction
• Rounded 9-Blade Diaphragm

Specifications:

• Angle of View (Diagonal): 126°05'~84°00'
• Angle of View (Horizontal): 117°10'~74°00'
• Angle of View (Vertical): 95°00'~53°00'
• Closest Focusing Distance (m, ft): 0.28/0.918
• Construction (Groups Elements): 11-16
• Diameter x Length (mm) (Approx.): 108 x 132
• Drive System: Focusing cam system by ring USM drive
• Filter Size (mm): Rear insert-type
• Max. Magnification (x): 0.16
• Min. Aperture: 22
• No. of Diaphragm Blades: 9
• Anti-dust and Moisture: Supported