I have shot dozens of 8K videos and 120p 4K videos using the "overheating failure" Canon R5 with no overheating stopping my shoots, over many hours (short takes only, of course - there are limits due to heat). In Summer heat. And I can make 8K videos from 12bit 8K RAW clips from the R5 using an 8GB MacBook AIR M1 (the "slow and low core") computer and DaVinci Resolve Studio, with no problems. 8K 12bit RAW clips or 8K 10bit HEVC 422 clips.

Now, I am not claiming that an 8GB MacBook AIR is the best for multi-cam, noise-reduction and stabilized in post video-making, but it works better than my gaming computers for specifically the R5 clips - which have among the most challenging (for higher quality) specs.

There seems to be a preference for flowers here, so this is an 8K example from 8K RAW edited on the 8GB M1 AIR:

And a 120 4K video:

And an HDR video (shot in 8K and rendered in 5K):

Yes, no 30-minute interview videos in 8K, and yes, probably an 8GB M1 portable computer is not for cinema producers.

Main sensor 108 MP 1/1,33" capable of 8K 30p video and 4K 60p, 48 MP telephoto sensor, 12 MP ultra wide sensor, 10x optical zoom range, 40 MP wide front camera with 4K 60p.

https://fdn.gsmarena.com/imgroot/news/20/01/s20-series-full-specs/-727/gsmarena_002.jpg

...meat the entry LV dedicated camera killer, course Japanese camera manufactures love to iterate in microscopic steps until they run out of business. :)

17+ steps DR range.

$80,000 for brand new camera body with this sensor

The 8K format will host a resolution of 7,680 by 4,320 pixels, which is 16 times as sharp as current HD TVs and offers resolutions of around 2MP. This is approximately the equivalent of a 32 megapixel photo. A new high-resolution tv format that is 16x sharper than today's HDTV has been approved. A new high-resolution tv format that is 16x sharper than today's HDTV has been approved.

Japanese broadcaster NHK has developed three cameras able to film in this Super Hi-Vision resolution at 120 frames per second.

http://www.bbc.com/news/technology-19370582

Now figure out lots of 8k monitors in the walls or in stands.

This will avoid the need of printing photos and allow exibition of photos, timelapses, graphics art, paintings and video; for culture, product sales, and lots of other things.

People can see the image with same or better quality compared to printed photos.

What do you think about this new era? Share your thoughts...

The average resolution for a full frame lens is around 45-50lp/mm and a great m43 lens is around 77-82lp/mm. The resolution charts shows the lenses at around 2000 - 2600 lines resolution maximum in still photos. Using a full frame lens in m43 sensor is worse because the sensor magnify the center area so the lp/mm will be half compared to same lens in a FF camera, a focal reducer can help a lot.

So the still lenses can work good up to 4k resolution, sometimes lower resolution than 4k video, and maybe for 8k video there will be the need of new special lenses, high price.

Considering that the indie people can buy only low price lenses, so work with 8k video will not make sense. 4k video is the maximum resolution for our photo/still lenses, no matter they are m43, aps-c or ff lenses.

Example: the 12-35 lens at f4 is around 77lp/mm in the image center, the GH4 sensor in 4k is 8.1mm height, doing the maths this lens will resolve around 1250 lines in GH4 4k video.

The new full frame Sigma Art 20mm 1.4 can do around 47lp/mm, so it will resolve around 770 lines in GH4 4k video. With a focal reducer this can increase to around 1080 lines. Most good Full Frame lenses are around a 50lp/mm maximum, and this is stoped down to f5.6

In a full frame camera, considering the sensor 36 x 20,25mm, this same sigma lens can resolve around 1900 lines.

The RGB bayer pattern decreases the camera resolution a little bit, around 1,33x less than the pixel count, so a 2160p video will deliver a maximum 1620 lines. The GH2 is 1080p and is around 810 lines.

Lens resolution is a good reason for Panasonic release new cameras with the multi aspect sensor, a bigger sensor can use more image area form the lens and record higher resolution, more lp/mm. The GH4 sensor is 8.1mm height, 1250 lines with the 12-35 lens. The multiaspect sensor with 3840x2160 pixels for video would be 10,09mm height, and could record 1560 lines from the same lens.

All these maths shows that 4k video is the sweet spot resolution for a video camera and for the lenses we can buy, and all these maths are in image center, in corners the lenses resolution is worst.

The news from www.theverge.com:

Ultra High Definition TV draft recommendation includes both 4K and 8K resolutions

The International Telecommunication Union has agreed on a new draft recommendation for the Ultra High Definition TV (UHDTV) specifications, including technical details for both 4K (3840 x 2160) and 8K (7680 x 4320) displays. While this is subject to approval from the union's administration, the move would seem to confirm that both resolutions will be labeled as UHDTV, similar to how "HD" 720p sets were sold before "full HD" 1080p became the norm. It's a little disappointing that the ITU didn't take the opportunity to go for a less potentially confusing system this time around, but hey — at least you won't have to wait for NHK and Panasonic's 145-inch 8K Super Hi-Vision set to get your hands on a UHDTV.

http://www.theverge.com/2012/5/28/3047597/ultra-high-definition-tv-uhdtv-4k-8k-itu