Nikon JAB73501 HB-35 Bayonet Lens Hood for AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR

Bayonet lens hood specifically engineered for NIKKOR lenses
By reducing the amount of non-essential light falling onto the front lens element, lenses can better achieve their optimum optical performance, producing more saturated images
In less-than-ideal lighting conditions, the performance difference can be substantial