4 ms·

Specifically, here's a good blog post explaining hyperacuity, and why 8k is at least marginally better: http://filmicworlds.com/blog/visual-acuity-is-not-what-t

• kibwen 8y ago
  Interesting, thanks. "for complex objects stereo acuity is similar to visual acuity. But for vertical rods it can apparently be as low as 2 arc seconds (1/30th of an arc minute). In other words, 30x as strong as typical visual acuity." Assuming that the author of the blog post picked 30x as representative of the most extreme cases, and if we take the root commenter's word that 4K is approximately 1x visual acuity, and if 8K is double the width and height of 4K (is that correct?), then that suggests that by the time we reach 128K resolution (32x visual acuity, >8 billion pixels) we'll have finally mastered screen resolution, which, alas, will be of little comfort to laptop users, whose screens will inevitably still be 1920x1080. :P
  • Dylan16807 8y ago
    That's only for detecting depth. The worst case a flat surface is 'retina' multiplied by 5-10.