Please read this post that was a back and forth between a forum member and myself.
Darian's New Toy
cai:
1.- Did you get the NEC-LT 150 DLP?
2.- How is the screen door in this projector, how far away from the screen do you have to sit for this effect to disappear?
3.- How strongly would you recommend a DLP, LCD, or DILA, in lieu of a CRT?
4.- Have you ever seen a DILA projector that has beeen properly calibrated, what are your impressions versus the DLP?
5.- Do you notice the rainbow effect, and when does this happen?
6.- Is it very noisy, or how noisy is it? Like a computer?
7.- Is there a light leakage issue, can it be plugged?
8.- Does this projector get very hot does it need a special housing?
1. Uhh huh.
2. You have to get pretty close to the screen to see the grid. Talking like 2 or 3 feet on a 60 inch image. Much smaller than LCDs and closer together.
3. DLP is great if you are going to be viewing things that don't fill up the whole panel. There is no threat of burn in. The bulbs are not real long lasting. This thing wieghs in at under 4 pounds and fits in one paw. Forget convergence, multiple aspect ratio setups, blah blah blah! Point, focus, picture.
4. Only seen a DILA at CES 2000 in JVC booth. Needless to say, it's advanced considerably since then. Cost makes it most prohibitive. That's when you forget about the noise, the heat, the funky lenses, the scaler, the hushbox, etc.
5. yup. Primates' eyes naturally track back and forth and vertically. This helps us to judge distance and depth (one of those hunting things, ya know?). Violently shaking your head about will exacerbate the problem. All you need to do is set the screen size so that it dominates most of your field of view.
6. Not too noisy, but we will be doing some things to make it quieter.
7. Si y oui. Construction paper and matte knife cured the problem in less than five minutes. You could take this a step further by specifically cutting out specific croppings.
8. Very is a relative term. I can pick it up with the thing on and not burn myself. How hot are we talking about here?
***************
Rainbows are based on your eyes moving. If you could force yourself to hold your eyes still then the rianbows won't be seen.