This Sony Lens Hood for SEL20F18G is an excellent spare or replacement for the hood included with the lens. It minimizes lens flare and ghosting by keeping out stray light when shooting stills or filming a video for sharp results. A compact build makes the petal-shaped, bayonet-type hood a lightweight addition to your kit. It blocks stray light from entering the lens, minimizing flare and ghosting. Weighing only 17.3g, this hood is made of high-quality materials.