3 ms·

When it comes to visual acuity for TV watching, doing calculations while basing yourself on their suggested '20/20 vision'=1/60 of a degree, is probably wrong (

When it comes to visual acuity for TV watching, doing calculations while basing yourself on their suggested '20/20 vision'=1/60 of a degree, is probably wrong (on average) : https://www.homecinemaguru.com/can-we-see-4kuhd-on-a-normal-sized-screen-you-betcha/ https://www.homecinemaguru.com/can-we-see-4kuhd-on-a-normal-... (The real limit seems only to start around 310 pixels/degree !)

iso1631 6y ago
That would suggest with the naked eye you could look at the moon and pick out features about 20km wide https://skyandtelescope.org/observing/how-to-see-lunar-craters-with-the-naked-eye102820152810/ https://skyandtelescope.org/observing/how-to-see-lunar-crate... "At 0.8′ (arcminutes) across, the crater alone hovers at the naked-eye limit" Which seems to back the the c. 1/60th idea. Judging the resolution of an eye is a subjective process, not least beacuse of the relative sensititivty and density of rods and cones at different parts of the eye.
- BlueTemplar 6y ago
  Exactly, 'subjective', the criteria the NHK used is 'sense of realness', not 'being able to consciously pick out features'.