What if we could bring movie theater quality images to the home?
this story from our colleagues on TechRadar Pro about a successor format to Blu-ray
Depending on how to you want to 'measure' it, 35mm film is generally considered to be able to provide somewhere between 4K and 6K resolution when digitized, so there'd be no point in trying to turn the world's library of movies into 8K.few use 8K cameras – even the likes of the hugely expensive Avengers: Endgame use 6K cameras. And visual effects aren't created at 8K either – so even if the footage is high-res enough, all the other stuff in the frame isn't.
I mentioned that 4K Blu-ray's bitrate is 16MB/s – do you know what the bitrate of digital cinema projections is? About 31MB/s. Having double the information per frame is why you can have such rich contrast and realistic hues from digital sources at the movies. What results would we hope to see from this? Again, it would be in the depth of the dynamic range and the naturalism of the color in the image. Each frame could fit in a wider number of shades from light to dark, and more individual shades of color , bringing things closer to what the eye's capable of seeing.
Which means that if cinema-quality files are about double the data of 4K Blu-rays now, and this technology can halve the data rate, then you could fit them on future 4K Blu-rays, right? I don't know whether it will work out so neatly as this in practice – and then there's the question of whether enough people are actually interested in a new disc format to make the development work worthwhile – but in theory, that'd be perfect.
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