Originally Posted by Ron Jones
Its my understanding that each LCoS is used with the R-G-B being sequentially flashed (like a DLP with a single DMD) and the 2nd LCoS is used for 3D. Is that also your understanding of what Red is doing (I know they have not officially released any details or even acknowledged they are using LCoS chips)? Given the response time limitations of LCoS, I suspect there may be visible RBE since the rate that R-G-B can be flashed may be relatively slow. Haven't seen any real discussion of this potential issue related to the Red projector, but I raised the question on the Red User Forum about 18 months ago. Just something to watch out for if Red does show a projector at CEDIA.
I think you're right, Ron. This was my understanding of how the HDI technology worked. But they claimed the LCoS chips they were using were capable of updating 1080 times per second (with full RGB-RGB-RGB frames, DLP-like). IIRC, they also claimed that the native contrast of their system was in the 1,500:1 range - far lower than many home theater enthusiasts would want. I e-mailed them at the time about the contrast "issue" but never received a response. Somewhere in the back of my head, I seem to recall reading that LcOS can be made to switch much faster, but at the expense of contrast. I suspected that this was the core problem that HDI (and now Red) has not been able to solve.
Many of the Red faithful are pros, not consumers like many of us on AVS. I'm way outside my area of expertise here, but I'm guessing a 1,500:1 contrast ratio might not seem like a huge problem for an exhibitor in a commercial theater. That may be why they've always said the commercial version will come first. But what do I know?