Features Highlight- Battery Grip dedicated for EOS 5D Mark III- Accommodates two LP-E6 batteries for prolonged shooting time- As a vertical grip with vastly improves grip handling by redesigning battery magazine orientation- Multi-Controller is added for more convenient vertical & horizontal shooting experience- Rigid magnesium construction- Battery compartment with improved dust and water resistance designBattery grip BG-E11 dedicated for EOS 5D Mark III can accommodates two LP-E6 batteries for prolonged shooting time. By rearranging the orientation of battery magazine, it can also be used as a vertical grip with vastly improves grip handling. In addition to a shutter release, multi-function buttons and a main dial, a Multi-Controller is added first time for more convenient vertical shooting experience as if doing it horizontally. The battery compartment with improved dust and water resistance# design, together with a rugged magnesium construction same as EOS 5D Mark III, ensures reli