Canon EF 16-35mm f/4L IS USM Lens

L-Series Ultra-Wide Zoom Lens/ Three Aspheric Lens Elements/ Two UD Lens Elements/ Highly Resistant To Dust And Water Intrusion/ Inner Focusing And Ring USM/ Circular Aperture (9 Blades)/ Minimum Focusing Distance Of 0.92 Ft/0.28m Across Entire Zoom Range/ Full-Time Manual Focus/ 16 Elements In 12 Groups Lens Construction/ 77mm Diameter Filter Size/ Black Finish