Why 3D doesn’t work and never will. Case closed. article tells about a letter is from Walter Murch, the most respected film editor and sound designer in the modern cinema (and not a big fan of 3D). The article comments on 3D cinema: dark, small, stroby, headache inducing, alienating. And expensive.
The first problem is that the 3D image is dark (about a camera stop darker) and looks small. Somehow the glasses seem to “gather in” the image and make it seem half the scope of the same image when looked at without the glasses.
Walter edited one 3D film back in the 1980′s — “Captain Eo” — and also noticed that horizontal movement will strobe much sooner in 3D than it does in 2D. This was true then, and it is still true now.
The biggest problem with 3D, though, is the “convergence/focus” issue. The audience must focus their eyes at the plane of the screen, but their eyes must converge at different distances depending on what the illusion is. So 3D films require us to focus at one distance and converge at another. This is a deep problem, which no amount of technical tweaking can fix (unless we can change to true “holographic” images).