From Dariusz Wolksi, ASC... in this month's issue of American Cinematographer...about shooting on Epic:
"When we can capture in 5k, do visual effects and other post works in 4k, and then project in 4k, I think it will look as good as Imax".
Imagine how good it will look on Dragon?
The article goes on to say that he choose the Epic also for its small size, "Its a little bigger than a Hasselblad."
He mostly shot Prometheus in 5:1 compression, though sometimes 3:1 for scenes with "very fine detail like water or foliage", the article notes.
Some great Ridley Scott quotes:
"I really love the picture quality of Red"
"I think Prometheus is a pretty good showcase for Red. Dariusz made it look absolutely beautiful in both 2-D and 3-D".
If it's good enough for Ridley, it's good enough for me!