SAVEoN Professional Digital Camera Hard Lens Hood + Cleaning Kit For Canon VIXIA HF S21, HF S20, HF S200 Flash Memory Camcorder 58mm Hard Lens Hood Cloth Cleaning Kit Lens Hood prevents image-degrading lens flare by blocking stray light Lens Hood assists in keeping moisture or wind-blown debris off the lens Lens Hood protects the front barrel from the inevitable impacts against walls, doors, frames and other real-life obstacles