Use this Sea & Sea Zoom Gear to control manual zooming with your Canon EF 8-15mm f/4L Fisheye USM lens in a compatible lens port, which mounts onto an MDX or RDX underwater camera housing. For compatibility, see the MDX System Chart or RDX System Chart. The gear mounts onto the zoom ring of the lens and is controlled via the focus/zoom dial/knob on the housing. It is constructed from a corrosion-resistant aluminum alloy.
UPC: 752221311549