Originally Posted by CAVX
I agree with you on the 4K. I don't think it is needed in the home. You can sit 2x quite comfortably with 1920 x 1080, yet many still sit 2 to 4x the image height back. 4K promises the viewer can sit as close as 0.8x, but with what I just said, who will anyway?
There's a large area between "as close as you can sit" and "pixels are smaller than can be perceived". Just because you "can" sit as close as 0.8x with 4k doesn't mean you have
for it to be beneficial. NHK performed a study
that shows 3.5 picture heights is about where 4k and 2k are viewed as equivalent in terms of "being there" and "realness". On a more practical level, I sit at somewhere about 3x height in my theater with a Planar 8150 and a Prismasonic HD5000R and while I can't "see" pixels, I can tell the image is made up of a grid of finite sized components. I think a lot of people think there's nothing to be gained by more pixels if you can't see the screen door. But they forget that the gap between the pixels is ~1/10 to 1/20th the the size of the pixels that means that you'll reach the point where that is too small to see very long before you reach the point where pixels themselves are too small to see.
I'm looking forward to 4K to get us past the point where we can tell the image is made up of pixels. Just look at cell phones/tablets/laptops. The new Droid DNA has a 5" 1080p display, there's no way you need 1080p on a screen that size if you use it like a typical display and show text as single pixels wide (you'd be unable to read anything) but that incredibly high resolution creates a very smooth images that is very pleasing. Or the new Macbook with it's Retina display, that's one of the smoothest, sharpest, best looking displays I've seen. I want that in my HT.
And again, unless there is native program to support this, no one will go there. I think it is best to change the AR than simply up the rez.
Even without native content, 4k will be very nice in a home theater. Especially with good scaling, for example something like the upcoming 4K Radiance will be killer tied to a good 4K projector, especially with an Anamorphic lens
And if you have doubts about if 4K is beneficial at "normal" HT seating distances, look no further than the reports from those with JVC projectors with e-shift. I think the vast majority find that it does make a difference and that difference is positive, and this is an apples to apples comparison, same content, same projector, only difference is "4K" vs 2K display.