yangbodyn a few obvious reasons:
- the 120 fps videos arent based on camera footage that is natively 120 fps, they are based on 60 fps footage converted to 120 fps. its fake 120fps, not the real deal.
- the conversion process is time consuming, and, at slr's scale, expensive. its simply not economically worth it for them to be creating 120 fps versions.
- few, if any, devices can play 8k 120 fps