Here is my problem.
Hello,
I have a Ronin-MX gimbal.  I plan to have it attached under my Matrice600.  I will be using the m600 for survey purposes.  What I need to know is how to 1) set the ronin to permanently be facing 90 degrees down so that it will stay facing the ground for proper survey.  Zero out to nadir. 2) when linked under the matrix, I need my Nikon D810 to trigger a picture based on waypoints.

If anything is unclear, I will be happy to elaborate.

Here is my problem.
Hello,
I have a Ronin-MX gimbal.  I plan to have it attached under my Matrice600.  I will be using the m600 for survey purposes.  What I need to know is how to 1) set the ronin to permanently be facing 90 degrees down so that it will stay facing the ground for proper survey.  Zero out to nadir. 2) when linked under the matrix, I need my Nikon D810 to trigger a picture based on waypoints.

If anything is unclear, I will be happy to elaborate.