VANGUARD GH-300T Pistol Grip Ball Head
Has anyone tried to use the Vanguard GH-300T tripod head with a D600? No instructions come with the head and two wires are included to attach the head to Canon or Nikon. You are supposed to be able to activate the shutter release with a button on the pistol grip. The only matching connection is marked GPS on the camera and I can get no shutter actuation. Has anyone had any success with this head on a D600?