Nikon HB-45 Bayonet Lens Hood for Nikon ED 18-55mm F3.5-5.6G and Nikon 18-55mm f/3.5-5.6G ED II Optional bayonet lens hood for select NIkon lenses. Compatible with AF-S DX Zoom-Nikon ED 18-55mm F3.5-5.6G and AF-S DX Zoom-Nikon 18-55mm f/3.5-5.6G ED II 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. Use of specifically engineered Nikon lens hoods is highly recommended.