Comment by isostatic

4K works for 40 degree field of view (That's pushing it, but for immersive movies that's what THX recommends). 4K works because of the increased HDR and framerate.

But most of it is 4K works because of the hype. Why buy last year's model?

4K is a resolution for 40 degrees wide and 23 degrees high. That's about 1/45th of a sphere, or about 2% of the total you'd need for a fully immersive 360 degree picture.

From what I've seen, 120fps is a clear improvement over 60fps, and that's just on a normal flat screen.

So even with a fixed focus single image you're looking at needing 400 megapixels. At 30 bits per pixel that's 12GBit per frame, or 1.5TBit/second.

You've then got technology that records depth, and allows people to chose their own depth of field. And why stop at visible resolution - we don't with pictures, because we can zoom in. Imagine a choice of say 100 360 degree cameras around a football stadium that allows you to zoom to a desired level, you could be up Petabit emerging from the stadium.