Here’s a more refined version of the previous project. The first one was just the rough idea, it needed some work.
In this project you can link the MasterNull to a path and it should work. I left the Y axis simple, with no rotation to it.
Let me know if it works for you.
Without motion control in production I do not think you will be able to match all 5 shots. It would be better to select stills that overlap from each shot and create a plate over which you can do a cam move in AE. There’s a couple of techniques you can use to make it look 3d and not flat.
Displacement in 3d using FreeForm.
Tutorial: https://library.creativecow.net/jelescu_tudor/3D-from-2D-image_AE/1
I won’t get to my machine till late (production shoot). I think in order to follow a path you may need one more Null, but I’ll have to test this later on.
Look at your path and check if the keyframes have bezier handles causing the path to bulge out in between the two that have the same position. If so, break the points on the path to eliminate that. I would recommended though using a camera rig to animate your camera. Maltaannon has a great tutorial about that.