Canon DR-E4 coupler

Description

The DR-E4 is a coupler that allows you to connect an AC-E4 power adapter (not included) to a Canon EOS 1Ds Mark III, 1D Mark III, 1D Mark IV, or 1D X (also not included.)

Please note: this is the coupler unit only. You will also need to source an AC-E4 power adapter to make use of this item. It will not do anything without an AC-E4 except give your camera a tail.