Nikon HB-23 Lens Hood
Bayonet lens hood provided with select NIKKOR lenses. Use of specifically engineered Nikon lens hoods is highly recommended. In less-than-ideal lighting conditions, the performance difference can be substantial.
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.
The HB-23 fits the AF-S 16-35 /f4 G ED, AF-S 17-35, f2.8D IF-ED, 18-35mm f3.5-4.5D (REPL), and AF-S DX 12-24 f4G