Fotasy Bayonet Lens Hood for Nikon AF-S NIKKOR 50mm F1.4G lens, replaces Nikon HB-47 Replacement for Nikon HB-47 lens hood, for Nikon AF-S NIKKOR 50mm F1.4G Lens Designed to prevent unwanted stray light from entering the lens. Ensures no problems with vignetting or motor functions. Drastically improves your image quality.