The JJC LH-78F petal style bayonet Lens Hood is designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. The non-glare matte finish on the inside further prevents or limits lens flare. No vignetting will show with the hood on. The hood can also be placed backwards over the lens for more compact storage. The hood allows you to put on a Ф72mm filter and a Ф72mm lens cap. With the extended lens end, you will also benefit from extra protection from accidental impact. JJC LH-78F replaces CAN. EW-78F lens hood.