Lens Hood 1pc, 100mm (3.94in) long. Replaces Canon ET-123B II hood.

A one-piece bayonet-mount lens hood kit for Canon EF 500mm f/4.5L USM.

Photographers appreciate Zemlin Photo lens hoods for their sturdy construction, light weight, and secure fit. Built for everyday use in the field, Zemlin Photo offers a practical upgrade to the original hood.

• Replaces the Canon ET-123B II hood.
• Includes lock ring for mounting.
• Overall length: 100 mm (3.94 in)
• Maximum diameter: 145.5 mm (5.73 in)
• Extension beyond the lens: 76 mm (2.99 in)
• Approximate weight: 186 g (6.6 oz)

Photos show a longer but similar hood on a Canon 300mm f/2.8.