Digi Design Ew-73b Hard Lens Hood for Canon Ef 17-85mm USM & Ef-s 18-135mm Is F/3.5-5.6 Lens (With EOS 50d, 60d, 7d, Rebel Xs, T1i, T2i Digital SLR Camera)
The Digi Designed  EW-73B Lens Hood for Canon EF 17-85mm USM & EF-S 18-135mm IS f/3.5-5.6 will prevent unwanted light exposure to enter the lens, and distort you pictures. Moreover, this hard lens hood also provides extra protection from accidental impact.