Description

Quick Overview

• EF-S-Mount Lens APS-C Format
• 27.2-88mm (35mm Equivalent)
• Aperture Range: f 2.8 to f 22
• Two UD and Three Aspherical Elements
• Super Spectra Coating
• Ring-Type Ultrasonic Motor AF System
• Optical Image Stabilizer
• Rounded 7-Blade Diaphragm

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  Product Description

  A tremendously flexible standard zoom for APS-C-format DSLRs, the EF-S 17-55mm f 2.8 IS USM from Canon pairs the 27.2-88mm equivalent focal length range with a bright f 2.8 constant maximum aperture. Benefitting this design is a sophisticated optical layout, which includes both Ultra-Low Dispersion glass and aspherical elements to significantly reduce chromatic and spherical aberrations for improved clarity and sharpness throughout the zoom range. A Super Spectra coating has also been applied to individual elements to suppress flare and ghosting for increased contrast when working in bright environments.

  Beyond the optical attributes, this 17-55mm is also characterized by its advanced three stop-effective Image Stabilizer system to minimize the appearance of camera shake. Also complementing handling is a sophisticated ring-type USM, which provides quick, quiet, and accurate autofocus performance along with full-time manual focus override.