Next-generation super telephoto L-series lens with an Image Stabilizer, it's one of the world's best lenses for wildlife and nature photography. The optical system is newly designed with a maximum aperture of f/4. One fluorite element and two UD-glass elements effectively correct aberrations resulting in sharp and excellent delineation.

# Focus Drive: Ultrasonic # Elements: 6/7 # View of Angle: 5 degrees # Min. Focus: 16.4 ft. (5m) # Min. Aperture: f/32 # Filter (diameter): 48mm drop-in # Length: 15-3/8" (390mm) # Weight: 6.6 lb. (3000g) More Product Information for the Canon EF 500mm F/4.0 L IS USM Lens, With Canon 1-Year USA Warranty Next-generation super telephoto L-series lens with an Image Stabilizer, it's one of the world's best lenses for wildlife and nature photography. The optical system is newly designed with a maximum aperture of f/4. One fluorite element and two UD-glass elements effectively correct aberrations resulting in sharp and excellent delineation. General Information Manufacturer Canon, Inc Manufacturer Part Number 2532A002 Manufacturer Website Address www.usa.canon.com Brand Name Canon Product Name EF 500mm f/4L IS USM Super Telephoto Lens Product Type Super Telephoto Lens Technical Information Fixed Focal Length 500mm Aperture Range f/4 Filter Attachment Diameter 52mm Lens Construction 17 Elements in 13 Groups Viewing Angle 5� Physical Characteristics Material Glass Dimensions 15.2" Length x 5.8" Diameter Weight 8.5 lb Miscellaneous Additional Information Focus Adjustment: Inner focusing system with USM Compatibility EOS (SLR) Camera Systems Warranty Standard Warranty 1 Year Limited Parts Warranty/Labor 1 Year