Ubivetz @ 03/12/19, 17:33
We went to the store, took a flash drive with a TV series in 1080. At 49 diagonals on the Sony XE, pixels are already visible in evening scenes from 3 meters. And you say 55 ". We decided to take 43"
I do not know what kind of pixels you saw there, but according to research, a person with 100% vision can distinguish something around 1/60 of a degree. Which means 60 pixels per degree or 1080 pixels per 32 degrees, which in turn corresponds to the resolution of FHD TV, for 4k (UHD TV) - this figure is 2 times more - that is 64 degrees. And only with a wider field of view a person will distinguish pixels, and the image will be like through a grid.
So, the Society of Cinema and TV Engineers (SMPTE) recommends sitting at a distance from the TV screen at which the screen fills 30 degrees of the field of view (at the same time the pixels are not even visible to the eye even on a 1080p TV (FHD), not to mention 4k TV)
For 3m (to be more precise 2.9m), the field of view at 30 degrees fills the 70 "panel. For 43, it is about 1.8m.
And for a recommended cinematic field of view of 40 degrees, even for an 85 "panel, the distance is 2.6m
Post has been editedvioch - 12.03.19, 18:30