This Lens Hood is designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. The "petal" shape of this lens hood maximizes the amount of hood coverage for the minimum amount of weight and hood area. This dedicated lens hood is designed to match the specific focal length of the lens. Brand new and high quality. The lens hood provides a cost-effective solution to the problems caused by sun glare rain and wind-blown debris and is also valuable in providing protection against knocks and damage. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. Lens hoods block side glare and augment the protection provided by filters to the lens surface and ring. Lens hoods are primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. The bayonet mount allows you to reverse mount the hood making it easy to store in your camera bag. Brand No Brand SKU 8975_NP-1022056539 Hood Shape Petal Model 35001522