torok on 25 October 2016
| vivster said: No wonder. I heard not even the Blurays are native 4k. |
Actually, most really aren't. Right now some studios are pushing for 4K or 5K filming, but the majority of 4K Blu-Rays were filmed in 2K. Even a good bunch of the ones filmed in 4K are downscaled to 2K for post production.
Source: http://www.highdefdigest.com/blog/ultra-hd-not-always-4k/
