The HB-116 is a rectangular lens hood designed for use with the NIKKOR Z 28-135mm f/4 PZ lens and screws onto the front of the lens. The unique shape of the lens hood is designed to control the amount of light hitting the lens, to prevent unwanted ghosting and flare. It features a filter adjustment window so you can easily and conveniently adjust variable ND or other rotating filters without having to remove the lens hood. It can be mounted horizontally or vertically with the window on top or to the side, as needed.