Spanning a wide-angle to telephoto range, the EF-S 17-85mm f/4-5.6 IS USM from Canon is a 27.2-136mm-equivalent zoom designed for EF-S-mount DSLRs. This reach is complemented by an optical design featuring one dual-sided aspherical element, which helps to minimize distortion and spherical aberrations in order to realize greater sharpness and clarity. One dual-sided aspherical element minimizes spherical aberrations and distortions for improved sharpness and accurate rendering. Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions.An Optical Image Stabilizer helps to minimize the appearance of camera shake by up to three stops to better enable working in low-light conditions and with slower shutter speeds.A ring-type Ultrasonic Motor (USM), along with an internal focusing system, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.

• Aperture : Maximum: f/4 - 5.6,Minimum: f/22 - 32
• Camera Mount Type : Canon EF-S
• Format Compatibility : APS-C
• Angle of View : 78?? 30' - 18?? 25'
• Minimum Focus Distance : 1.15' / 35 cm
• Magnification : 0.2x
• Maximum Reproduction Ratio : 1:5
• Package Contents : Canon EF-S 17-85mm f/4-5.6 IS USM Lens,E-67 II 67mm Lens Cap,Lens Dust Cap E (Rear),Limited 1-Year Warranty
• Optical Design : 17 Elements in 12 Groups
• Diaphragm Blades : 6, Rounded