Canon 16-35 F/2.8 L II Used: Well used, damage on filter ring, but elements in good condition. From Canon: The EF 16-35mm f/2.8L II USM Lens from Canon is a high performance, water-resistant, ultra wide-angle L-series zoom lens. An f/2.8 maximum aperture is effective in low light situations and offers shallow depth of field focus control. The optical design has been improved to offer better edge-to-edge image quality. All of the "L" lenses deliver optical performance equal to similar fixed focal lengths lenses and provide tight seal structures for dust and water resistance. Specifications Focal Range: 16-35mm Maximum Aperture: f/2.8 Minimum Aperture: f/22 Lens Mount: Canon EF Focus Type: Autofocus Lens Format Coverage: Full-Frame Filter Thread Size: 82mm Minimum Focus Distance: 28cm Optical Design: 16 Elements in 12 Groups Diaphragm Blades: 7, Rounded