That depends on how bright the subject matter is since reflected light determines much of the exposure.
A ND 16 might work for some scenes and a ND32 might be too dark for others. If you want to stay in that narrow a band and not move shutter at all you may need both.
Read again... Hyperlapse mode. 1/4 to 1/25 is the sweet spot for motion blur.
If you are looking for blur (which you didn't state) then both the ND32 and ND 64 will be useful. I will also be adding a 128 and 1000.
Here is a post form my experience yesterday using a ND64:
FStop.Labs ND filter sets observations and opinion.
I’d love to experiment with it around here however the only thing remotely close enough to a waterfall we have is when I dump the kiddie pool over on the deck.
I'm thinking a ND16 for most of my conditions. I used a ND32 most of the time with the Mavic Pro and the ND64 occasionally. As I understand ND filters, they allow a percentage of the light to hit the sensor. ND4 is 1/4, ND8 1/8, etc. So if you are starting with less light, each stop on the VA will half that again. I believe that's how it works. If I'm correct, each stop will make your ND4, for example, an ND8, a ND16, etc. Once I get my filters, I'm also going to test this as well. I'm almost missing the relative simplicity of the MP...
The thing to keep in mind is that the mavic pro was a F2.2 aperture fixed, so if you used a ND 32 mostly with that drone, and plan to shoot at F4 (sweet spot for MP 2 pro, You would be using a ND 8 to ND 16 at F4-4.5 for the same exposure. I suspect the ND32 wont get as much use given the sweet spot of the MP 2 Pro lens, except to slow down the shutter speed for motion blur
Yes I agree, that's kind of my point although I lack the experience to articulate it as well as you have. I'm anticipating leaving a ND8 on the drone and only swapping it in low light or extremely bright/winter conditions.
Thanks for the reply!