I have some shots where the flickering of the high shutter speed looks very bad.  Thinking about getting a 2-5 or 6-9 stop filter for future shoots.

Ordered $500 worth of PolarPro VND filters and setup rings for the M2 and A7R4.  Never know when you will need it.  Shooting double shutter speed at 4k 24fps is the best if you aren't slowing down footage for that natural blur.  When you are on the treadmill, if you look down at the lines on the treadmill.  The faster you go when staring at one spot, it no longer becomes sharp and trackable.  This is real-life w/ the human vision.  I used to think keeping things at high shutter speed is the best way but was wondering why my footage doesn't feel so good when looking at it compared to the pros.

Take a look at the Freewell VND

Polar Pro seem to offer good VND's too

Hello there AntDX316. Thank you for reaching out and for these information you have shared. I hope that you will get the best recommendation from our fellow DJI Co pilots on what is the best VND filters they are using on this situation. Thank you.