AquaTech 10910 CZ 11-24mm Zoom Gear for Delphin or Elite Sport Housing Lens Port

Enjoy smooth, seamless lens operation underwater when using AquaTech's 10910 CZ 11-24mm Zoom Gear for the Canon 11-24mm f/4 Lens. Mount the gear on the zoom ring of your lens, then connect it to the zoom control knob of your AquaTech Delphin or Elite Sport Housing. When you're ready to shoot, you'll be able to zoom the lens back and forth from outside the housing.