Features:

• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/4 to f/22
• One Super UD Element
• Three Aspherical Elements
• Optical Image Stabilization
• Super Spectra Coating
• Ring-Type Ultrasonic Motor AF System
• Optical Image Stabilizer
• Weather-Sealed Construction
• Rounded 8-Blade Diaphragm
• In Retail White box

The EF 24-105mm f/4L IS USM Lens is a Canon L-series zoom spanning a useful wide-angle to short-telephoto range and featuring a constant f/4 maximum aperture. Complementing the flexible design is an advanced optical layout that includes one Super UD element, which reduces color fringing and chromatic aberrations in order to realize a high degree of color accuracy and clarity. Three aspherical elements are also featured, and minimize distortion and spherical aberrations for improved sharpness. Additionally, a Super Spectra coating has been applied to individual elements to control flare and ghosting for high contrast and neutral color fidelity.

Balancing the refined optics, this 24-105mm f/4 also sports a ring-type USM and internal focusing mechanism to enable quick, quiet, and accurate autofocus performance, as well as full-time manual focus override. A four-stop-effective Image Stabilizer is also used to minimize the appearance of camera shake for sharper handheld shooting. Additionally, this lens is weather-sealed and has a protective fluorine coating on the exposed elements for use in trying environmental conditions.

• Standard zoom is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 38.4-168mm equivalent focal length range.
• Constant f/4 maximum aperture maintains consistent illumination throughout the zoom range.
• One Super Ultra-Low Dispersion element reduces color fringing and chromatic aberrations for high clarity and color fidelity.
• Three aspherical elements minimize 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 four shutter speed 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 design, optimized focusing algorithms, and a high-speed CPU, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.
• Rounded eight-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.
• As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.