Hmm, how do you see that working? Wouldn't it just look like normal video? You'd see each "slice" in the air, rather than a complete image.

I mean still do the long exposure as you're doing for your stills. And use say, 25 long exposure photos per second for the video.

But make the patterns animated, so for example with https://www.stavros.io/posts/behold-ledonardo/maria-small.jp... you could have the light appear to rotate around the lady.

I imagine it'd be extremely slow work, creating enough photos though!

Oh, I think you can just take the video and do that in post, actually! I will have to try it, it's a very nice effect.