As of DJI's new Firmware Update 1.8.0.70 for the Ronin S, they have added more controls for the focus wheel on Nikon Cameras including the D850. I did a quick test (with my boy Pluto) as seen here, using the medium setting and what a GAME CHANGER, before I always felt the focus would go in steps, this now seams so much smoother. Can't wait to use this in upcoming projects :-)