Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon Digital SLR for $599.0

A masterpiece of innovative optical design, this compact, lightweight, high performance standard zoom (26-78mm equivalent) delivers a fast F/2.8 aperture over its entire focal-length range for maximum creative flexibility. To maintain critical sharpness when shooting handheld it includes VC (Vibration Compensation), Tamron’s state-of-the-art, tri-axial image stabilization system.