JJC LH-72 Professional Replacement Lens Hood EW-72 For Canon EF 35mm 2.0 IS USM Lens Black JJC LH-72 Professional Replacement Lens Hood EW-72 For Canon EF 35mm 2.0 IS USM Lens Black Reduces flare even in bright sunlight lightweight , durable IN STOCK , SHIP THE SAME DAY Deflects oblique light angles that often cause flare effects Helps protect front of the lens scratches and dings while shooting Lens hoods are primarily designed to avoid 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.