Canon ET-74 Lens Hood for EF 70-200mm f/4L Lens

Lens hoods are primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact.

Dedicated lens hoods are designed to match the specific focal length of the lens it was designed for.

• Shades the lens from stray light, improving your contrast and image quality
• Helps to keep moisture or wind-blown debris off the lens in inclement weather
• Protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles