Fotodiox Dedicated Bayonet Lens Hood (ES-68) - for Canon EF 50mm f/1.8 STM Lens Dedicated lens hood for Canon EF 50mm f/1.8 STM Lens Blocks stray light improves contrast also prevents lens flare and ghosting Bayonet mount will not affect mounting filters or caps protects front element of lens; Reversible for easy storage Constructed from high impact plastic for durability 24 Month Fotodiox Warranty