difference in brightness from top to bottom

[bigkidd]

First of Hello.New guy
all of you have done a real good job about sharing all this info.i found it all very helpful in setting up my system.
I am using a nview 255 panel and a elmo hp-4k dx ohp.
The panel is brighter at the top and gets darker as you get to the bottom.Is this common ? is there a way to fix it ?
I ruled out it being my ohp by turning the panel upside down with the same results.(brightness was now on the bottom)

Thanks in advance for any help on this.

I did try and search for this but i didnt have much luck most of the threads seem to talking mostly about ohp problems when it came to uneven brightness.

 

[ds21]

I think it's when some panels get older they start to fade, My spectra C does that too but I just moved the panel down in my case so the bright spot from the projector lite it up more evenly, works for now...till I get a 15" lcd