This is a Canon EF 16-35mm f/2.8L USM lens. The exterior has some minor scuffs and slight clouding on the rubber parts, but it's not sticky due to aging. I think it's perfectly usable. Included accessories: 77mm protection filter (KENKO Skylight), rear cap, original box from when purchased. Lens cap is not included. [Product Features] ■ Uses three types of aspherical lenses (ground, replica, GMo) ■ Also uses two UD lenses, correcting various aberrations well ■ Achieves sharp, high-contrast, high-quality images ■ Thorough dust and moisture resistance, and a beautiful circular aperture for bokeh ■ Excellent operability, including full-time manual focus and non-rotating filter frame [Product Specifications] ● Filter size: 77mm ● Weight: Approximately 600g ● Length: Approximately 103mm ● Maximum diameter: Approximately 83.5mm ● Lens construction: 10 groups, 14 elements