One Aspherical Lens Element
The Canon EF-S 17-85mm f/4-5.6 IS USM Standard Zoom lens boasts an aspherical lens element with two aspherical surfaces to correct spherical aberrations for excellent image quality throughout the zoom range.
Optical Image Stabilizer
The Canon EF-S 17-85mm f/4-5.6 IS USM Standard Zoom lens features Canon’s Optical Image Stabilizer to provide up to three stops of shake correction for sharp, blur-free images.
Ring-Type USM (Ultra-Sonic Motor)
Spun by ultrasonic oscillation energy, the USM is quiet and quick, making this lens almost noiseless and its autofocusing fast, precise and practical.
Lightweight and Compact
The Canon EF-S 17-85mm f/4-5.6 IS USM Standard Zoom lens features a compact body with maximum 92mm long and weight at 475g to allow easy transportation.
