Panasonic Lumix & Sigma FP DMW-BLC12 Coupler & DTap 8 Volt Drop Down Adapter 
 
Compatible Cameras
DMC-GH2
DMC-GH2H
DMC-G5
DMC-G6
DMC-FZ200
DMC-FZ300
DMC-FZ300GK
DMC-FZ1000
DMC-GX8
DMC-GX8H
DMC-G7
DMC-G85