Lens hood is one of the most important accessories for each lens you own. A lens hood provides multiple functions: it shades the lens from stray light, improving your contrast and image quality; in inclement weather, it can assist in keeping moisture or wind-blown debris off the lens; and it protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles. JJC LH-J30NB Lens hood is specific for Samsung NX 30mm f/2.0 Standard (Pancake) Lens. LH-J30NB replaces SAMSUNG LH30NB, LH-30NB and EDLH30NB Lens Hood. The LH-J30NB is made of high quality black anodized aluminium.