Originally Posted by bjmarchini
I have seen the 1080p projectors in the store.
There's a bunch of them out now, many for very reasonable prices.
They are really not all that better than 720p to me especially for another 1200-1500. I am not saying there is not difference, but the cost to value ratio for me personally has not come in line. You start to get to a point of diminishing returns.
Have you actually seen them, or are you just going by what you've heard. Because while the resolution itself doesn't contribute to significantly different picture quality, all of the advances in other areas (color, contrast, black level, etc) are getting put into the new 1080p machines and not the 720p ones.
For example the Sony VW50 is quite a leap over the HS51, not because of the resolution, but because of all of the other improvements. Epson has done the same thing with theirs, as has Panasonic, Infocus, and well, everybody else.
from a pure mathmatical stance, it is 222% more pixels to take care of so there is alot for it to handle. of course even though it has that that much of a pixel difference, it still only has 360 more vertical line which is 150% more which is why I don't think there is as much of a jump. 480i (240x2) is about 3 times the resolution if you are coming from interlaced content.
Anyone in the know will tell you that outside 1.5x screen width 1080p isn't a big deal from a resolution perspective, but those same people should be saying that the 1080p projectors are just a lot better than the 720p models for all the (more important) reasons mentioned above.
You may wonder why 1080 is lower than 720p. It is because in high motion scenes (which include sports and many movies)
Sorry, but that's not quite right, movies are (almost exclusively) 24fps, that means they are 1080p24 telecined into 1080i60. What's that mean, it means for movies 1080i is better than 720p (assuming proper handling by the display). What you say is true for sports/video content (ie true 1080i60 content), in theory at least.