Safeguards against stray light Helps protect lens front element Can be reverse fitted for space saving in camera bag High quality design and construction This EW-63C lens hood prevents flare and ghosting, caused by stray light entering the lens which is useful when shooting into the light. The lens hood also helps to protect the lensfront element from accidental damage. Features Compatibility EF-S 18-55mm f/3.5-5.6 IS STMEF-S 18-55mm f/4-5.6 IS STM Product colour Black Shape Round Compatible lens diameter 5.5 cm