General > General Technical Chat
Just because technology can do something, doent meant its always right
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SpacedCowboy:

--- Quote from: Black Phoenix on June 09, 2022, 07:18:12 pm ---Nothing against curve panels, but as PC monitor. Had one at the company and being able to have 2 windows open side by side, each at 1920x1200, as if it was 2 monitors side by side was a godsend in terms of space saved. But it was only the place were it would look logical to me.

--- End quote ---

The below is my home-office (the place formally known as 'the shed at the bottom of the garden', post installation of a/c and insulation) setup. The curved monitor is in the middle in portrait, and I really like it...

It's incredibly useful for data sheets when I've got a PCB window up on one of the monitors, and the schematic on the other./Users/simon/Desktop/IMG_0465.jpeg

Or when coding - no more scrolling up and down on colleagues enormous functions/methods to see what's going on - just a glance up or down (I've given up trying to instill a shorter-focussed-methods-are-better approach, apparently throw-in-the-kitchen-sink-as-well approach is a more common coding style...)

The two 4K monitors at the side are easy to work with and can show an enormous amount of detail, but the widescreen one is where I put text so it's easier to read at a glance.
james_s:

--- Quote from: AndyC_772 on June 10, 2022, 10:44:27 am ---It's academic; movies just aren't made in that resolution. Most aren't even in 4K, they're upscaled.

I have a true 4K projector with a 120 inch screen. A good 1080P image looks excellent, and the best examples of a 4K image are better still - but a good 1080P image beats a mediocre 4K one hands down.

Most 4K content is pretty mediocre, and if the resolution already isn't the limiting factor, a change to 8K can't offer any real improvement because the information simply isn't there to begin with.

--- End quote ---

Movies used to be shot on 35mm film, IIRC while analog it is roughly equivalent to 8K. I don't know much about the stuff used today for digital cinema. I definitely agree that there is much more to this than resolution, far too many rips of HD movies are such low bandwidth that the resolution is just wasted.
TimFox:

--- Quote from: james_s on June 10, 2022, 05:27:48 pm ---
--- Quote from: AndyC_772 on June 10, 2022, 10:44:27 am ---It's academic; movies just aren't made in that resolution. Most aren't even in 4K, they're upscaled.

I have a true 4K projector with a 120 inch screen. A good 1080P image looks excellent, and the best examples of a 4K image are better still - but a good 1080P image beats a mediocre 4K one hands down.

Most 4K content is pretty mediocre, and if the resolution already isn't the limiting factor, a change to 8K can't offer any real improvement because the information simply isn't there to begin with.

--- End quote ---

Movies used to be shot on 35mm film, IIRC while analog it is roughly equivalent to 8K. I don't know much about the stuff used today for digital cinema. I definitely agree that there is much more to this than resolution, far too many rips of HD movies are such low bandwidth that the resolution is just wasted.

--- End quote ---

The SMPTE estimates that there are roughly 30 standards in use for digital cinema.
A popular specification (DCI) can be found at  https://dcimovies.com/specification/DCI-DCSS-v141_2021-1013.pdf
That spec references "4k" at 4096 x 2160 pixels, and "2k" at 2048 x 1080 pixels, and specifies that decoders for DCI shall handle both, and be capable of 24 or 48 frames/sec.
Bassman59:

--- Quote from: james_s on June 10, 2022, 05:27:48 pm ---
--- Quote from: AndyC_772 on June 10, 2022, 10:44:27 am ---It's academic; movies just aren't made in that resolution. Most aren't even in 4K, they're upscaled.

I have a true 4K projector with a 120 inch screen. A good 1080P image looks excellent, and the best examples of a 4K image are better still - but a good 1080P image beats a mediocre 4K one hands down.

Most 4K content is pretty mediocre, and if the resolution already isn't the limiting factor, a change to 8K can't offer any real improvement because the information simply isn't there to begin with.

--- End quote ---

Movies used to be shot on 35mm film, IIRC while analog it is roughly equivalent to 8K. I don't know much about the stuff used today for digital cinema. I definitely agree that there is much more to this than resolution, far too many rips of HD movies are such low bandwidth that the resolution is just wasted.

--- End quote ---

My local art-house movie theater is showing "2001: A Space Odyssey" from a 70 mm print next month. I saw it last time that print came around here. It is unbelievable: sitting in the middle of a large theater you can still read the writing on the control panels and the space suits.
james_s:

--- Quote from: TimFox on June 10, 2022, 05:37:12 pm ---The SMPTE estimates that there are roughly 30 standards in use for digital cinema.
A popular specification (DCI) can be found at  https://dcimovies.com/specification/DCI-DCSS-v141_2021-1013.pdf
That spec references "4k" at 4096 x 2160 pixels, and "2k" at 2048 x 1080 pixels, and specifies that decoders for DCI shall handle both, and be capable of 24 or 48 frames/sec.

--- End quote ---

2K sounds like a significant step backward compared to old fashioned 35mm film. Frankly even 4K sounds low for a movie theater sized screen, personally I would consider 8K to be about the bare minimum to be called reasonable and given the high dollar movie industry I'm surprised they aren't using something really exotic.
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