Sony Disputes Theatrical 3D Issues

Sections: 3D, Movies, Projectors, Video

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Naturally, one would think that Sony would have some issue with the Boston Globe story earlier in the week that makes their new 4K system look a bit shabby


Sony projection systems are capable of both 2D and 3D projection with a 3D lens or 2D with a 2D lens.
3D projection utilizes RealD technology.

Lens technology:

Sony projectors do not rapidly alternate two images. Our system displays both left and right eye images at the same time, all the time.
Polarized glasses allow the viewer to continuously see the left image with the left eye and the right image with the right eye, thereby mimicking the way our eyes naturally see in 3D.
Some other systems alternate the images, but Sony systems do not.
Sony 3D systems are not the only ones with two beams of light. Any double-stacked system would have two beams, as would a RealD XL cinema system on other projectors.

Lens change:

It takes less than 20 minutes for a trained technician to change the lens.
Sony has a system in development to make the change even simpler.
If there are cases where it is not possible to change the lens, the 3D lens will play back 2D content.
If the system is setup for 4.5fL (studio recommended) in 3D, it will play 2D content at about 14fl without glasses and filters, which falls well within the SMPTE spec of 14fL +/- 3flL.
RealD filters for Sony systems only reduce the light by about 20%, because light out of the Sony projector is already polarized, unlike our competitors.
Removing the 3D glasses has the most effect on the visible light.
Changing a lens does not require entering the projection system. Lenses are changed from the front of the projector.
There is no security risk, nor is there danger of shutting down the system.
Projector operators are required to login, on all digital cinema systems, by the DCI Specification.


While we are not at liberty to discuss the details of specific customer transactions, most of our customers work with integrators, using the well-known Virtual Print Fee (VPF) model.
We sell our projectors to those integrators.
Sony is also an integrator, offering VPF agreements directly to exhibitors.
We do not negotiate the exchange of projectors for pre-show advertising.

Now, I’m pretty sure all of the above is correct. However I am also sure that the theaters have regulations about opening the box, about spending the money on the tech, and that someone trying to change out the lens that doesn’t quite know what they’re doing can result in a copy-protection device lockout. I also fully believe that many of these theaters fail to switch from 2D to 3D mode.

Either way, theaters are still skimping on presentation quality by not staffing quality, trained technicians in their theaters. Presenting film, even digitally, is still a fine art of technical tweaking, and the difference I see at a theater in California in the heart of Hollywood, and what I see at the local multiplex — using nearly identical gear — is almost always noticeable. So the lesson is still learned: if your picture stinks, complain, loudly and clearly, and to corporate if necessary.

Via: [Sony Digital Cinema]


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