Axel Mertes
Well-known member
What is the dynamic range of the human eye?
The dynamic range of the human eye is commonly understood to be around 7 without changing the iris (because otherwise its not the dynamic range of the eye, but the lense plus iris plus the receptors).
A good projection is typically designed to deliver about 7 stops on output, so your iris does not need to accomodate when viewing around and you can see all details "at once".
However, in todays projections you can get really hefty dynamic range, which means you may be able to show more dynamic range than your eye can see "at once". Typically this is not a good idea for a movie projection, because your movie will contain such bright image areas that you can't see the highlight details without loosing all low light details at the same time (due to your eye changing iris size) and vice versa. Who's filmmakers intention would that be to loose parts of the images by a wide dynamic range projection? Its like risking to giving up a piece of story telling.
For scientific use such high dynamic range projection may be useful, but rarely for movies (IMHO).
High dynamic range on the ingest is ALWAYS welcome, though...