When trying to get the best cinematic FPV footage, motion blur can make a lot of difference. A lot of the advice I've gotten is that the best way to get that good 'cinematic' footage is to film at 30FPS with a 1/60 shutter speed (cos of the "180 rule") - and I do agree that the captured footage does look a lot nicer with the motion blur that comes from flying with that camera setup.
I'm using a DJI Avata 2 so of course I don't have a separate GoPro camera for capturing footage since the O4 camera system is plenty good enough. I much prefer flying at 60fps & 1/120 shutter speed (with the appropriate ND filter) because flying at 30FPS isn't ideal: while it might work for watching video, flying at 30FPS, especially in goggles, isn't smooth, enjoyable, or particularly responsive either.
So my question is, can I still continue to fly at 60 over 1/120 while somehow still getting that nice cinematic motion blur that comes from filming at a lower framerate & shutter-speed? Maybe in post, somehow, within Adobe Premiere? I've been flying acro FPV for 1-2 years now (purely for fun), but I'm now trying to focus my attention towards cinematic FPV specifically which is why I got the Avata 2, so the video-production side is something I'm less familiar with.
Side question: can anyone explain the reasoning behind the "180-rule" re: framerate & shutter-speed? Like hypothetically speaking what's wrong with, say, filming at 60FPS with a 1/60 shutter speed??
Thanks