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I just wanted to put this in its own thread. This was NOT refering to the LT150, which for its price doesn't matter what flaws it has.
It was refering to those $8000+ single chip DLP's.
"As I have said before, and repeated again, out come my fellow Rainbow Crusaders.
In fact, I had a very long argument with another member about rainbows, which he denied was a problem.
My logical argument: WHY then are companies coming out with faster colour wheels, to fix something that isn't a problem? Obviously, it is a problem they recognize. I also responded by questioning how any company could release a product with such an inherint flaw.
My point, it is of no use to the rest to say "I don't see rainbows, so it doesn't exist." To go out of your way to try to avoid them is wasting your own time and money. So, after you spend 10K which is ALOT of money for what amounts to a "toy" You start to see rainbows, and realize you wasted your money. Once you see it, you WILL look for it, you WILL notice it.
However, this does not mean that there are not those who do not see the "colour separation artifacts." Some people can try all they want, and not see them. However, this is a very big problem...because anyone can say they see them, and then the rest of us know that there is some possibility that we might see it if we buy that particular projector. But when someone says they DON't see it, that can mean absolutely nothing."
What does this mean? It means that, unfortunately, we will never truly have a benchmark for rainbow testing on single chip DLP's. Unless there is some scientific method to determine when the colour wheel speed is fast enought that no one can see it, I, at least will be permanetly hesitant when dealing with scDLP.
However, I assume that this is because of the business market focus. However, I will never know how Seleco, Dwin, Sharp have the nerve to charge so much, for a product that has an inherint flaw. Here in Canada, I could buy a fairly nice used car for the price of these projectors.
I had asked, before, why not make a 10 speed colour wheel. No true answer was really concluded, and that is obviously stuck in the heads of Sharps and others engineers minds. If you are already goign to have such an expensive machine....get the colour wheel right. Ie...FASTER...however, I assume that the brings its own problems, but they won't be rainbow.
What IS the speed at which the rainbow artifact will not be seen? I don't know. But if they just go overboard...a 20X colour wheel..hehehe...then I am sure we won't have the problem.
I guess all they have to do is make the colour wheel twice the size, with twice the number of elements on it, and that would effectivly double the rate. Then, speed it up...
I, however, cannot really discuss the colourimetric issues involved with the colour wheel. I will leave that up to Milori and others to discuss.
Remember my point, for a 2-4K dollar projector, this, I guess is part of the sacrifice. When you start getting into the higher price ranges, this is unacceptable. And we know it, and the companies know it, or else they we would still be at 1x 3segment colour wheels. I guess they just haven't gotten it completely right.
It was refering to those $8000+ single chip DLP's.
"As I have said before, and repeated again, out come my fellow Rainbow Crusaders.
In fact, I had a very long argument with another member about rainbows, which he denied was a problem.
My logical argument: WHY then are companies coming out with faster colour wheels, to fix something that isn't a problem? Obviously, it is a problem they recognize. I also responded by questioning how any company could release a product with such an inherint flaw.
My point, it is of no use to the rest to say "I don't see rainbows, so it doesn't exist." To go out of your way to try to avoid them is wasting your own time and money. So, after you spend 10K which is ALOT of money for what amounts to a "toy" You start to see rainbows, and realize you wasted your money. Once you see it, you WILL look for it, you WILL notice it.
However, this does not mean that there are not those who do not see the "colour separation artifacts." Some people can try all they want, and not see them. However, this is a very big problem...because anyone can say they see them, and then the rest of us know that there is some possibility that we might see it if we buy that particular projector. But when someone says they DON't see it, that can mean absolutely nothing."
What does this mean? It means that, unfortunately, we will never truly have a benchmark for rainbow testing on single chip DLP's. Unless there is some scientific method to determine when the colour wheel speed is fast enought that no one can see it, I, at least will be permanetly hesitant when dealing with scDLP.
However, I assume that this is because of the business market focus. However, I will never know how Seleco, Dwin, Sharp have the nerve to charge so much, for a product that has an inherint flaw. Here in Canada, I could buy a fairly nice used car for the price of these projectors.
I had asked, before, why not make a 10 speed colour wheel. No true answer was really concluded, and that is obviously stuck in the heads of Sharps and others engineers minds. If you are already goign to have such an expensive machine....get the colour wheel right. Ie...FASTER...however, I assume that the brings its own problems, but they won't be rainbow.
What IS the speed at which the rainbow artifact will not be seen? I don't know. But if they just go overboard...a 20X colour wheel..hehehe...then I am sure we won't have the problem.
I guess all they have to do is make the colour wheel twice the size, with twice the number of elements on it, and that would effectivly double the rate. Then, speed it up...
I, however, cannot really discuss the colourimetric issues involved with the colour wheel. I will leave that up to Milori and others to discuss.
Remember my point, for a 2-4K dollar projector, this, I guess is part of the sacrifice. When you start getting into the higher price ranges, this is unacceptable. And we know it, and the companies know it, or else they we would still be at 1x 3segment colour wheels. I guess they just haven't gotten it completely right.