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Guitarguy on 21 March 2016
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SvennoJ said:
Guitarguy said:

Good points but UHD Blu Rays being dead on arrival is due to those certain films being finished on a 2K digital intermediate and then up-rezzed to 4K, meaning it is not a genuine and pure 4K output. Hence why the current '4k' blu rays being only marginally superior than their 1080P counterparts.

No, 4K mastering has been going on for a while now. Plenty blu-rays already have 4k masters. Some have even been scanned at 8k from their 70mm source, while remasters are generally scanned at 4K from 35mm. There is only a small gap of the early naughties that is plagued with a 2K production chain. You will never see LOTR in proper 4K as that was all filmed and produced in 2K. However Ben Hur (1959) will look excellent in 4K.
Pretty much all movies are now filmed in 5k and mastered in 4K, 2K digital intermediates are a thing of the past.

It is early days and the list is still quite small.
http://www.avsforum.com/forum/166-lcd-flat-panel-displays/2202713-master-list-currently-available-4k-hdr-titles-will-updated-often.html


I would not say 2k digital intermediates are a thing of the past:

http://www.blu-ray.com/movies/X-Men-Days-of-Future-Past-4K-Blu-ray/145679/
http://www.blu-ray.com/movies/Mad-Max-Fury-Road-4K-Blu-ray/147183/#Review


"Mastered in 4k" does not mean true 4k resolution. It simply means a 4K scan of the original camera negative. The output of these "mastered in 4K' discs is still 1080P. The 4k scan is then down-converted to 1080P, compressed and authored(amongst other things). These disks do look better than standard 1080P disks, but it is no where near true 4K.

Some UHD blu rays are finished on 4k digital intermediates but a strange amount of very recent films where finished on 2k...