Orion 12V DC Power Adapter for EOS 60D, 7D, 5DMkII/III DSLRs Use this handy DC adapter to power your Canon DSLR with a 12V field battery Compatible with Canon EOS 5D Mark II, 5D Mark III, 6D, 7D, 60D and 60Da DSLR cameras Perfect for astrophotographers who use DSLR cameras for long imaging sessions Save yourself from the hassles and expenses of limited-capacity DSLR batteries More efficient than AC adapter and converter combinations. Includes DR-E6 coupler with 2-meter cable.