Lens Hood 1pc, 50mm (1.97in) long. Replaces Canon ET-138 hood.

Bayonet-mount 1pc lens hood kit. Replaces Canon ET-138 hood. Length: 50mm (1.97in). Maximum diameter: 163mm (6.42in). Extension beyond end of lens: 24.5mm (0.97in). Approximate weight: 139g (4.9oz). Fits Canon EF 500mm f/4L IS USM.