Compatible Brand:CanonEF 50mm f/1.8 STM camera lens Model Number: ES-68 Blocks stray light from entering the lens No vignetting would show with the hood on No vignetting will be caused with the hood on Extra protection from accidental impact 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. Note : This ES 68 lens hood is compatible with Canon EF 50mm f/1.8 STM Lens. Please confirm your lens model which can be seen infrom of your lens before ordering this product. Brand No Brand SKU 100958920_NP-1021514041