Working with the sony a7rii and switronix power base-70 battery eliminator.. With this battery pack we can shoot all day sometimes 2 full days on one charge. Working on a review how it works with a7s as well and acts as a vmount battery too.. #xeen #camera #cameraporn #satostudiogear #satostudios #sony #a7s #arii #metabones #instagood #instamood #instadaily #setlife sonyprousa mrcheesycam sonya7r