Canon EF 17-40mm f/4L USM Lens
Product Description
Features: EF-Mount Lens/Full-Frame Format, Aperture Range: f/4 to f/22, One Super Ultra-Low Dispersion Element, Rounded 7-Blade Diaphragm, Super Spectra Coating, Ring-Type Ultrasonic Motor AF System, Weather-Sealed Construction, Three Aspherical Element
Color: Black
Focal Length: 17 to 40mm
Aperture: Maximum: f/4Minimum: f/22
Lens Mount: Canon EF
Lens Format Coverage: Full-Frame
Angle of View: 104° to 57° 30'
Minimum Focus Distance: 11.02-inch / 28 cm
Magnification: 1:4.2 Macro Reproduction Ratio0.24x Magnification
Optical Design: 12 Elements in 9 Groups
Aperture/Iris Blades: 7 - Rounded
Focus Type: Autofocus
Image Stabilization: No
Filter Size: 77 mm (Front)Gel Filter (Rear)
Dimensions: ø: 3.29 x L: 3.81-inch / ø: 83.57 x L: 96.77 mm
Weight: 1.1 lb / 500 g