Pixco Bayonet Mount Flower Lens Hood for Canon EF 50mm f/1.8 STM Lens Repleces ES-68 Brand new and high quality,The design makes it firmly on the lens Lens hoods block side glare and augment the protection provided by filters to the lens surface and ring In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. The lens hood provides a cost-effective solution to the problems caused by sun glare rain and wind-blown debris and is also valuable in providing protection against knocks and damage. Compatible With: Canon EF 50mm f/1.8 STM.