Its constant f/2.8 aperture and 5-stop Vibration Compensation system make it a sharp, versatile standard zoom for full-frame Canon DSLRs. The sophisticated optical design, featuring multiple XR, LD, and aspherical elements, effectively controls aberrations and flare for high contrast. This lens is best for event and wedding photographers who need reliable stabilization and autofocus in a single, do-it-all zoom.
