I'm pretty sure the Sony 4k rooms cannot do true 4k HFR 3D, by the way. They can accept the data, but cannot relay the info to your eye. The polarized glasses cut the res down or you can keep it in 2D. You can't do all three, even though technically they are 4k. As far as I can tell, unless someone has contrary technical information, Sony is using marketing mumbo jumbo to distort the facts on what their gear is capable of. Correct me if I'm wrong, but I'm fairly sure the physics are not on their side without going to either dual 4k HFR, 8k projectors, or 96hz and shutter glasses. IMAX 15/70 with synced shutter glasses is fully capable of doing all three, as would Maxivision... which is much cheaper than IMAX 15/70 equipment (let alone the prints or digital installs), by the way. It's like under 20 grand for the projector head, in comparison to the hundreds of thousands of bucks chains and indies have dumped into limited-capability already-outdated inferior digital projectors. I do not expect more IMAX 15/70 installs to occur, and the company’s increase in the number of Imax Digital installs is disturbing considering all it has going for it is a better sound system and maybe a more professional projectionist (though, that’s variable). MV is the one format that would rule them all. Hah! Those heads even make conventional 35mm prints look better, and is safer and cleaner, too. Less dust, scratches, frame shake, etc. And frame singling/doubling/tripling strobbing can be eliminated from mechanical shutter rotation, as the liquid crystal shutter can remain open as long as possible prior to going opaque and the digital registration and compressed air moving the print to the next frame briefly. And that's just the projection end. MV can capture the equivalent of >10k 48fps 3D if film is used, with no projection issues with relatively cheap MV heads on conventional ubiquitous 35mm projectors (many getting sadly junked, warehoused, or given over to film schools now)... and of course the vastly superior dynamic range film gives. Even as digital capture improves, film projection does not lock the chains and indies to one expensive install with limited upgrade potential. And MV gives them an edge over 3D bluray and 120hz 1080p HFR computer 3D.