Hi Garry (spell your name right this time)
Sorry was caught in a little work there didnt really explain.
The general rule of thumb when shooting video is to set your shutter speed at twice that of your framerate. So I can see you’ve set your frame rate at 30, so therefore the shutter speed would be set to 1/60 . Again with the ISO, we set as small as possible or as near to 100 as we can to keep the image as crisp and grain free as possible. You cant always stick it on 100 of course, but its whatever setting helps you to get capture those right image(s).
Using some of the above, it will help you set your camera up when next out n about taking vids with your ND filters on.
Im still getting my head around ISO’s/ Apertures and shutter speeds etc so I’d expect someone possibly to correct my terminology and make better sense of what I was trying to say ! LOL.
Failing my blitherings above, there are some fab youtube vids on it.