Having started to take video with my D810, and being keen on steadiness but reluctant to carry around a full size tripod, I have been using a small but sturdy Manfrotto mini tripod with built in ball and socket, which I place on a suitable low wall or table where possible. I am pleased wth the rock steady results and would now like to get a suitable fluid pan and tilt head to put on top of the ball head (which I will use just for levelling). It needs to be sturdy and smooth but not too big or heavy. Any ideas appreciated. Thanks Philip.