AquaTech CZ Lens Zoom Gear for Canon 16-35mm f/2.8 L / 16-35mm f/2.8 L II in Lens Port

AquaTech CZ Lens Zoom Gear is required for zoom control with the Canon 16-35mm f/2.8 L or 16-35mm f/2.8 L II lens when housed in a compatible AquaTech underwater lens port. It enables access to the full zoom range of the lens. The gear is constructed from polyurethane.