i have been looking at buying the new samsung LED DLP, but i think the rainbow issue might be a deal-killer for me, as i am VERY sensitive to them on color wheel sets (i get headaches)
For those who dont understand why the rainbow effect can still happen on these new LED DLPs -- the rainbows occur because the Red Green and Blue lights are flashing on and off rapidly for various amounts of time (as are the mirrors) in order to give the appearance of various mixed colors and brightness. So if you have sensitive eyes, and shift your vision quickly from one corner of the screen to the other, you get the sense of seeing the same exact image in Red Green and Blue trailing in slightly different places. It must have something to do with the refresh rate of your eyeballs as to why some are very sensitive to rainbows and others dont see them at all. I am also sensitive to 60hz computer monitors as well.
The effect should be greatly reduced on these sets because the speed at which the R G and B are flashing is significantly faster than the old color wheel version.
I think I will still wait for an affordable 3-chip DLP set to make the switch. Until then, I stick with Lcos, LCD or Plasma (even though I LOVE the clarity and color of DLP), because once I see the rainbows, I am ruined.