Originally Posted by Scott Wallace
What are consumer units doing better than Digital Cinema units? And more importantly HOW are they doing it? It does stand to reason that TI would want their to be a delta between what a single consumer can do and what a commercial cinema experienced by moviegoers numbering in the 10's of thousands daily can experience. It is in TI's best interest that they assure the commercial side is showcased before they make it possible for the tiny, tiny, tiny segment of the market that will pay 5 or 6 figures for a video projector to top it.
There are different limitations for the 2 markets. For instance, commercial theaters are going to have some lighting on just because that is the law (at least in the US) and they don't want to get sued. A home user doesn't need exit signs and things like that. Also, commercial cinema demands huge lumens because they have huge screens. Given the way DMDs and projector designs around them work, other than using a dynamic iris, going for more light generally means less contrast ratio (at least less on/off CR), or by definition, a higher absolute black level in ft-lamberts for the same white level in ft-lamberts (light off the screen).
Of course different people can care about different parameters more, but the above is one of the differences.
And if TI decides to purposely hold home theaters back just for the sake of having images in DCI theaters be better, then there is a good chance they do it at the own detriment. That is where it is nice when there is at least some competition. If there was more competition at the 2000 lumen mark (like from Sony) that would probably help even more, but I doubt TI is doing a lot to purposely hold home units back just for the sake of having them be inferior. They might be held back some because of cost, but that is a different matter than things like purposely holding the on/off CR values back would be.
As far as what people care about, a person could decide that projector A beats projector B in 4 categories, while projector B beats projector A in 1 category, yet still prefer the images from projector B. For instance, if the areas where A gets a 99% subjective score B gets a 97% score, but the one area where B wins it gets a 98% score and A gets an 80% score. Just an example where a person could weight how well they believe each does in different images parameters and it could go the other way too. I would like to see how much the DCI units beat something like the Lumis by in the categories where the DCI units are better, but of course it is subjective too.