The Canon ES-84 Lens Hood for TS-E 90mm &TS-E 50mm f/2.8L Lenses deflects stray light from entering the lens minimizing flare. The hood also provides extra protection to the lenses from accidental impacts, bumps, or scratching. Use this as a spare or replacement for the hood originally included with the lens.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.