Canon EF 16-35mm f/2.8L III USM Ultra-Wide L-Series Zoom Lens

A pro-grade Canon EF ultra-wide zoom featuring a constant f/2.8 aperture across the 16–35mm range. The EF 16-35mm f/2.8L III USM introduces a redesigned optical formula that noticeably improves resolution toward the outer edges and corners of the frame. Specialized coatings — Sub Wavelength Coating (SWC) and Air Sphere Coating (ASC) — work together to minimize flare and ghosting for cleaner contrast in challenging light. Built to L-series standards, the barrel resists dust and water intrusion so you can shoot in demanding environments. The nine-blade circular aperture produces smooth, pleasing background rendition. Not compatible with extenders. Magnification with Extension Tube EF12 II- 0.65 at Tele (Not compatible at Wide). Magnification with Extension Tube EF25 II- 1.14 at Tele (Not compatible at Wide). Lens Construction: 16 elements in 12 groups. Filter Size: 82 mm, P=0.75 mm/1 filter.