I have used ND filters on my mirrorless cameras for photo and video things for a few years and almost exclusively use Urth filters (used to be Gobe).
I think (pretty sure) i need some for the Flip (I don’t think the Potensic can take them) but which ones, I can find Freewell, K&F, Neewer and some ive never heard of.
Can anyone recommend some/make from personal experience?