SE163528LFG

SS-31190

Sea & Sea

Use this 31190 Focus Gear from Sea & Sea to control manual focusing with your Canon EF 16-35mm f/2.8L III USM lens in a compatible lens port, which mounts onto a Sea & Sea MDX underwater camera housing. The gear mounts onto the focus ring of the lens and is controlled via the required extension ring with focus knob. It does not work with the focus/zoom dial on the housing. It is constructed from a corrosion-resistant aluminum alloy.