It seems that on the
M4P when in pano mode focus for all shots is only infinity. You're correct that will work for the majority of shots. But what if you desire a mountain peak that is closer than infinity in focus, but everything around it soft. That seems impossible on the
M4P.
Yes ... it would be impossible.
Because the camera on the drone has so much depth of field, the only way you could have the subject in focus and everything around being soft would be to focus on the subject at 2 metres.
At f2.8 that would give you sharp focus from 0.6 metres in front of the subject to 1.35 metres behind.
But if your subject is 5 metres from the camera, you would have everything in focus from 2.5 metres in front of the camera to infinity.
I'm sure the hypothetical mountain peak you mentioned would be >5 metres from your drone.
In previous drones that was possible.
No it wasn't ... unless you you were shooting a foreground element only 1-2 metres from the camera, which would be very rare in drone photography.
btw .. as the numbers above show, focusing at infinity is not necessary.
Really all this concern about fine focus isn't necessary for drone panoramas, but if it was, you can always shoot your panos manually, the way I do.
But I still don't worry about fine focus and use the drones very good auto focus ability.
If you really want to shoot landscape panoramas with very selective focus, the drone isn't the right tool.
You need something like a 35mm SLR with an 80-200 f2.8 lens.