• Canon EF Mount Lens
• Aperture Range: T1.5 to T22
• One Aspherical and Two HR Elements
• UMC Coating
• Geared Focus and Aperture Control Rings
• De-Clicked Aperture Ring
This lens is compatible with full-frame sensors and can also be used on APS-C-sized sensors, where the 35mm-equivalent focal length will be 56mm.