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8K TVs Are Coming, But Don't Buy the Hype (engadget.com)
If the 8,294,400 pixels of resolution on an Ultra High Definition television just don't seem to convey enough detail, fear not: The electronics industry has heard your cry. From a report: Even as UHD TVs, often called 4K TVs for their nearly 4,000 pixels of horizontal resolution, approach half of display shipments in the U.S., set manufacturers have been stepping up their demos of 8K sets that, with their 7680-by-4320 resolution, pack in a full 33,177,600 pixels. And Sharp is now expanding its distribution of one such set, the 70-inch LV-70X500E. Following its October debut in China and subsequent arrivals in Japan and Taiwan, this 8K display will go on sale across Europe at the end of April for about $13,800 at current exchange rates. That, apparently, is supposed to be a reasonable price for a set that supports a video format that offers next to nothing to watch, that can't be streamed on most broadband connections or fit onto Blu-ray discs and which can't even be properly appreciated unless you get a set too big to fit in many living rooms.
[...] The highlights reel playing on a demo unit of Sharp's 8K set required 300 megabits per second of bandwidth to stream, said Adrian Wysocki, group product manager at UMC, the Sharp-owned firm that builds TVs in Poland for the company. He suggested in a conversation Friday that more efficient formats could cut that to 100 Mbps. Only 23.2% of U.S. fixed-broadband connections hit that speed at the end of 2016, according to to the Federal Communications Commission's latest report on internet access services.
[...] The highlights reel playing on a demo unit of Sharp's 8K set required 300 megabits per second of bandwidth to stream, said Adrian Wysocki, group product manager at UMC, the Sharp-owned firm that builds TVs in Poland for the company. He suggested in a conversation Friday that more efficient formats could cut that to 100 Mbps. Only 23.2% of U.S. fixed-broadband connections hit that speed at the end of 2016, according to to the Federal Communications Commission's latest report on internet access services.
When 4k came out at five digit prices how much content was available for that? Obviously no one is going to run out to spend $13,000 on a 70" 8k screen. This is for the future, when 100mbit broadband is more common. Remember the cheapest, smallest 4K screens from budget brands like Westinghouse and Hisense were a whopping $4,000-$5,000 in 2013. Those same tvs sell for $300 today. http://money.cnn.com/2013/01/1...
my karma will be here long after I'm gone
8K broadcast standards use Rec 2020, which has a much wider gamut and can therefor show colors that most TVs these days can't. Rec 2020 is even wider than the DCI-P3 that many high-end monitors benchmark against these days.
Rec 2020 also defines a larger bit depth: 10 or 12 bits per component rather than 8. This is partly to support the wider gamut, but it'll also help everything else by allowing much better gradients.
Even if you don't have an 8K TV, ones that use HDR10 and Dolby Vision will benefit: both of these standards use the Rec 2020 gamut. So... bring on the 8K revolution. I want better browns.
> But the human eye has its limits too. What's the actual N, beyond which we, the humans -- even those with the sharpest eyes -- can no longer distinguish between N and 2N pixels per inch?
The TL:DR; version is: Use a 4K distance calculator
* Distance Graph (PNG)
* Size to Distance Calculator
The Long version: It's complicated
From a well known and respected Photography:
http://clarkvision.com/imagede...
But if we do the math ...
Another calculation estimates around ~2200 dpi.
http://wolfcrow.com/blog/notes...
But since we don't view things from 4 inches away ...