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The very popular RED digital cinema cameras have always shot in compressed form using a low-latency wavelet-based codec (presumably with some ASIC or GPU accele

The very popular RED digital cinema cameras have always shot in compressed form using a low-latency wavelet-based codec (presumably with some ASIC or GPU acceleration on board). http://www.red.com/learn/red-101/redcode-file-format http://www.red.com/learn/red-101/redcode-file-format http://www.theblackandblue.com/2012/05/02/shooting-red-epic-7/ http://www.theblackandblue.com/2012/05/02/shooting-red-epic-... What cameras shoot uncompressed 8K HDR video? That doesn’t even seem possible given current SSD bus speeds. Note that many high-quality lossless formats are actually still compressed (they subtract current frame data from the previous frame and then apply LZ4 for example).

vardump 8y ago
> What cameras shoot uncompressed 8K HDR video? That doesn’t even seem possible given current SSD bus speeds. 12-bit bayer RGB matrix 8k @24 fps: 7680 * 4320 * 12bit * 24/s = 1.2 GB/s uncompressed. Currently SSDs go up to 3 GB/s. And you could have a RAID 0 array made out of multiple SSDs. So it is possible. Entirely another matter whether it makes sense. One hour of video at this bitrate requires 4.3 TB.
- fandango 8y ago
  Did you forget that there are multiple color channels? 12 bit should be 36 bit so even more is needed.
  - vardump 8y ago
    No. That's how practically all of the cameras work. Google RGB bayer matrix. There's just one color component per pixel, thus 12-16 bits per pixel is enough.