The Nikon HB-120 is a large, rigid Lens Hood designed for use with the NIKKOR Z 120-300mm f/2.8 TC VR S super-telephoto lens. It uses a bayonet-style mount for quickly attaching and detaching from the lens. Because of the bayonet design, there are no protruding clamp knobs to get in the way. The lens hood shape is designed to protect the lens from flare while shooting in addition to keeping the elements, such as rain or snow, from hitting the front element of the lens.