1- 12v to Hirose 6 Pin Female Power Cable - B4 mount lenses to power video lens zoom function NOW YOU CAN POWER YOUR 6-PIN LENSES TOO!! For use with any of our 12v rechargeable batteries: HERE Guaranteed to work with our batteries. If using a different battery or adapter, verify correct equipment polarity before use. This cable was designed specifically to power 2/3" lenses (B4) mounted on Panasonic AF100, GH1, GH2, GH3, Olympus PEN, OM-D EM-5, Sony NEX and other digital Cameras, however it will power all types listed below. Powers any 1/3" 1/2" 2/3" Fujinon Nikon Canon Angenieux Schneider B4 lens Servo having a Hirose 6 Pin Male connector: Source power from a 12v battery or AC to DC 12v Power Supply. Provides power to the Zoom Servo functions including (Fujinon) Quick Zoom, Cruise Zoom Memory Functions. Provides power Iris return. Auto Iris will not function as that requires some communication from the camera which this cable cannot provide. Solid Construction. 12" (30cm) length. Note: For B4 mount lenses with 6-Pin connector only. 12-Pin is more common. If you need 12-Pin, go here. If you need a cable for a B3 lens, go here.