This EW-73D Lens Hood prevents flare and ghosting, caused by stray light entering the lens. Useful for when shooting into the light, this lens hood also helps to protect the lens front element from accidental damage. Benefits Safeguards against stray light Helps protect lens front element Can be reverse fitted for space saving in camera bag High quality design and construction What\'s in the box EW-73D Lens Hood Compatibility EF-S 18135mm f/3.55.6 IS USM (nano) RF 24-105mm F4-7.1 IS STM