[Dave W]

Hi all-


I recently acquired a Compaq MP1600 1-chip DLP projector, although I love the smooth detailed picture, I've discovered that I am definitely sensitive to the rainbow effect. I currently have a Da-Lite high power screen (gain 2.8), and I'm wondering if switching to a matte screen (gain 1.0) would help reduce the rainbow effect. Has there ever been any correlation made between screen gain and rainbow effect?


Thanks-


Dave

 

[PapaSloth]

I don't know about any definitive studies, but I know from personal experience that when I moved from a white screen to a gray screen I noticed the rainbow a lot less. Rainbow is worst with bright, glarey whites against dark backgrounds. Reducing the intensity of the whites helped.


I imagine you'll find the same thing going from a high-gain screen to a lower-gain screen.

 

[Gary Lightfoot]

hi Dave,


Maybe you could try hanging a plain bedsheet in front of the screen and watch a movie clip that displays the rainbow effect very obviously.


If it seems less obvious, then going to a lower gain could improve your viewing pleasure.


Gary.

 

[Warren460]

Try running the projector from a computer.


I dont think that the lower gain will make any difference.


At least, in my experience, it did not make any.


Warren