The Canon ET-120 Lens Hood is designed specifically for the EF 300mm f/2.8L IS USM lens. It helps to eliminate stray light, reducing lens flare and enhancing image quality. Additionally, it provides a degree of protection for the lens, safeguarding it from accidental impacts and scratches.
Canon 2703A001 Et-120 Lens Hood For Ef 300mm F2.8l Is Usm