If it was filmed/mastered in 2k, I refuse to watch it in UHD

[Geoff D]

Originally Posted by chip75

We may never see sample results from say, 2K masters at their highest specs (with the benefits of UHD BDs extra range) on UHD BDs versus 2K masters upconverted to 4K with all the gizmos added but I think it would be better to keep things as original as possible. The upconverts are just going to be needlessly compressed to Faux-K.

I'm not sure if UHD BDs can handle an in-between resolution between 1080p and UHD? If it's 2.8K then all the better!

You say "needlessly compressed" to 4K but to my eyes the UHD download of Terminator Genisys from (what I presume was) a 2K upscale had more appreciable detail than the Blu-ray, either because of filtering done to the regular Blu-ray or because there really was more detail thanks to the higher resolution colour component of the 2160p image compared to the 1080p version. (This wasn't some fancy 10-bit wide colour gamut HDR version either, it was 8-bit 709 SDR just like the regular Blu, but it will still have chroma that's 4x the resolution of the 1080p version.)