SUBSIM Radio Room Forums - View Single Post - To 4K, or not to 4K, that is no longer the question

Skybird · 12-23-18, 06:46 AM

that on a big screen you see differences, makes sense. Take a 1950x1080 display (full HAD), and a screen of 30". At 2m, most people cannot see individual pixels anymore, even less so when their coour melts with the background of the scene, is not black on white. Blow up the screen with same resolution (hardware) to 60" or more, and the individual pixel becomes 4 times the size, factor to horizontally and vertically.You either have to move back and increase your viewing distance, or you have to use a screen with higher hardwar resolution and software that scales full HD film material to the higher hardware pixel resolution, else oyu end up with a 4K screen that shows a pixel in a full HD (=2K) movie by using 2x2 of its finer hardware pixels - and again you see the pixel of the film in all blockiness. But if you use indeed 4K material on such a huge screen, it should make a difference indeed.

But over here, there is no 4K broadcasting being done. None, rien, nada. And the selling of Ultra HD (=4K) movies on disks has just begun.

Anyway, if I use a screen size and viewing distance where I already on a full HD display cannot see individual pixels anymore, and barely can see the difference between a DVD and a bluray image/film, I cannot benefit from chnaging that screen for a UK screen and watching 4K material on it. It makes only sense if I massively increase the screen size and do not want to move backwards.

What they can do with comression in the end I do not know, but fact remains that a movie in 4K in its original file size would take several 3x and 4x bluray disks to store. But bringing 477 GB down to 1.5 GB - I mean that is a factor of 318 !

However, glad you enjoy your device. That one is satisfied with what one has, is the most important. Those things cost real coins.

This table looks at what I dsay, just from a different perspective. Its self-explanatory and gives recommended viewing distances in relation to screen size and resolution.

Its distance-dependent. Note the difference between SD and 4K content regarding the viewing distance is factor 3, and for HD to 4K comparison the factor still is 2.

How did I end up in here?

Originally I was looking for information about film ediiting and resolution and frame rates best used for video cameras. LOL...

12-23-18, 06:46 AM	#7
Skybird Soaring Join Date: Sep 2001 Location: the mental asylum named Germany Posts: 42,767 Downloads: 10 Uploads: 0	that on a big screen you see differences, makes sense. Take a 1950x1080 display (full HAD), and a screen of 30". At 2m, most people cannot see individual pixels anymore, even less so when their coour melts with the background of the scene, is not black on white. Blow up the screen with same resolution (hardware) to 60" or more, and the individual pixel becomes 4 times the size, factor to horizontally and vertically.You either have to move back and increase your viewing distance, or you have to use a screen with higher hardwar resolution and software that scales full HD film material to the higher hardware pixel resolution, else oyu end up with a 4K screen that shows a pixel in a full HD (=2K) movie by using 2x2 of its finer hardware pixels - and again you see the pixel of the film in all blockiness. But if you use indeed 4K material on such a huge screen, it should make a difference indeed. But over here, there is no 4K broadcasting being done. None, rien, nada. And the selling of Ultra HD (=4K) movies on disks has just begun. Anyway, if I use a screen size and viewing distance where I already on a full HD display cannot see individual pixels anymore, and barely can see the difference between a DVD and a bluray image/film, I cannot benefit from chnaging that screen for a UK screen and watching 4K material on it. It makes only sense if I massively increase the screen size and do not want to move backwards. What they can do with comression in the end I do not know, but fact remains that a movie in 4K in its original file size would take several 3x and 4x bluray disks to store. But bringing 477 GB down to 1.5 GB - I mean that is a factor of 318 ! However, glad you enjoy your device. That one is satisfied with what one has, is the most important. Those things cost real coins. This table looks at what I dsay, just from a different perspective. Its self-explanatory and gives recommended viewing distances in relation to screen size and resolution. Its distance-dependent. Note the difference between SD and 4K content regarding the viewing distance is factor 3, and for HD to 4K comparison the factor still is 2. How did I end up in here? Originally I was looking for information about film ediiting and resolution and frame rates best used for video cameras. LOL... __________________ If you feel nuts, consult an expert.