Canon 5175B002 SLR Lenses EF 24-70mm f/2.8L II USM Standard Zoom Lens Black Type: Zoom Lens Format: 35 mm Full-Frame, Canon (APS-C) Focal Length: 24 - 70 mm Camera Mount: Canon EF Aperture: Maximum: f/2.8 Minimum: f/22 Compatibility: Canon EOS Diameter: 82 mm Focus Type: Auto Focus