The DC-5D1 is a dummy battery adaptor for the Canon EOS 5D and EOS 7D. Attached to a cable mounted 2-Pin Power-Con (D-Tap), it allows the user to power an EOS Camera from an external broadcast battery source.
Now prominently used in HD recording and time-lapse photography, these cameras can now be powered from V-Lok (and other) types of battery. The advantages of using a single high capacity battery over dozens of standard Canon LP-E6 batteries are obvious.
The DC-5D1 just needs to be plugged into a D-Tap power socket on a suitable battery fitting, like our DC-CA5 Canon Power Boxes. The dummy battery contains an 8.4V regulator, so is compatible with any output distributing 10-20V.