Canon ET-74B Lens Hood

The ET-74B Lens Hood is compatible with the Canon EF 70-300mm f/4-5.6 IS II USM lens and the RF 100-400mm F5.6-8 IS USM lens. It helps minimize flare by deflecting stray light from entering the lens. The hood also provides additional protection to the lens from accidental impacts, bumps, or scratching.c