Weight (g): 545 This is a wide-angle zoom lens with a focal length of 17mm on the wide end and a large aperture. It incorporates two aspherical lenses, including a ground aspherical lens for the first lens, effectively correcting distortion, which tends to occur in wide-angle zoom lenses. The inner focus system maintains high image quality from infinity to the closest focusing distance. Ring USM is used for AF drive, achieving silent and high-speed AF. Furthermore, the lens offers excellent usability with features such as full-time manual focus, which allows manual focus even in AF mode, and a rear gelatin filter holder. Included Accessories: Lens filter (bonus) Lens hood Storage bag Thank you for viewing. There is some whitening on the rubber parts due to aging. Operation has been confirmed, and there is no dust or mold. This is based on a subjective assessment. Please consider this a used item and understand before purchasing.