General > General Technical Chat
Just because technology can do something, doent meant its always right
bd139:
Well that's where windows and macOS diverge. Looking at a 27" display you need UI furniture and text to be roughly the right size based on the display size. The problems are this:
4k native -> everything too small
4k 2x scaling -> everything too big
4x 1.5x scaling -> everything right size but too blurry
5k 2x scaling -> just right
I wouldn't say it's 3x what your eyes can pick out. It's very very obvious the difference if you sit in front of a 5k display versus a 4k display for all of the above cases.
Chuck in decent dynamic range, colour calibration and there's a winning combination. Apple are the only supplier shipping 5k 27" which is super super popular with anyone doing graphical work (and programming now) because it's the sweet spot.
Simon:
Oh you are talking about the windows scaling. Well yes and no. This page is scaled by and amount by the OS but also it could be by the browser. apart from after changing the scale I have not seen issues really with using 150%, 175%, 200% or 225%, I choose the one that makes sense for my eyes in terms of haw big things are, it's never an issue. Yes the more pixels you have the more play there is but really what you are asking for is not 5k resolution because it's 5k but because the numbers make sense. I don't know how the OS generates things but I have had no issues with any magnification setting on my 4k. Yes other factors matter, I would always take a lower resolution better quality panel over a high resolution low quality. Both my monitors are IPS, I paid more for them than non IPS and made sure they were matt not gloss finish. The result is that they are like looking at printed paper.
Cerebus:
--- Quote from: bd139 on June 26, 2022, 03:56:44 pm ---The whole point is there being pixels so small you can’t see the discrete steps in curves of text etc. that’s a different problem to not being able to see discrete pixels.
--- End quote ---
The resolving power of the eye is usually given as 1/60 of a degree for a person with 6/6 (20/20 in bushels per fortnight land) vision. That's the ability to just see two black lines, set 1/60 of a degree apart, with white in between them, rather than perceive a single grey line. To model this as pixels, the pixels would need to subtend 1/120 of a degree (to get black/white/black with the black 1/60º apart), which at 1m would make a pixel 145 um wide, or 72.7 um at 0.5 m (or 349 pixels/inch at 0.5m).
However, we can distinguish discontinuities at a finer level. So draw a line, cut through it and offset one half from the other and we can spot that at even smaller scale. (Haven't got hard figures to hand)
Vision is complicated, and pixels/inch numbers is too simplistic to describe what can and can't be seen. Other things come into the equation, contrast, illumination level and so on. But if you have to decide on a pixel size that's close to the limits of human vision then 1/120 of a degree subtended angle would be the number to pick.
bd139:
--- Quote from: Simon on June 26, 2022, 05:38:48 pm ---Oh you are talking about the windows scaling. Well yes and no. This page is scaled by and amount by the OS but also it could be by the browser. apart from after changing the scale I have not seen issues really with using 150%, 175%, 200% or 225%, I choose the one that makes sense for my eyes in terms of haw big things are, it's never an issue. Yes the more pixels you have the more play there is but really what you are asking for is not 5k resolution because it's 5k but because the numbers make sense. I don't know how the OS generates things but I have had no issues with any magnification setting on my 4k. Yes other factors matter, I would always take a lower resolution better quality panel over a high resolution low quality. Both my monitors are IPS, I paid more for them than non IPS and made sure they were matt not gloss finish. The result is that they are like looking at printed paper.
--- End quote ---
Yeah those seem really good until you sit in front of something better. It’s nearly impossible to go down a monitor grade again. I actually prefer gloss finish myself. Better colour contrast. But you need something that can pump out a lot of brightness if you have a gloss screen. I went from 27” 4k IPS 250 nits to 27” 5K 600 nits P3 and it’s crazy different.
Cerebus:
--- Quote from: bd139 on June 26, 2022, 05:29:32 pm ---Apple are the only supplier shipping 5k 27" which is super super popular with anyone doing graphical work (and programming now) because it's the sweet spot.
--- End quote ---
No, LG do too, and of course until Apple introduced their own it was the LG UltraFine Display that Apple themselves sold to fill the gap.
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