Originally Posted by BlackShark
I received the LCD special Omega filters. I'm a bit late, they were stalled at the French customs.
The new filters can't accomplish miracles, the left eye looks very good but the right eye is still a mess and I don't think it's fixable (the projector spectrum is bad to start with).
Right eye :
-red is very dark (not fixable)
-cyan is almost white (not fixable)
-magenta is violet (fixable)
However there is significant improvement over the original filters :
Out of the box with default projector settings, the white point is much closer between the eyes, it isn't an exact match but it's close enough to not notice the difference with the glasses on. It's good, because I don't have to kill my brightness with the global RGB gain settings of the projector.
An interesting fact : the coloration has been reversed between the left and right eye, the eye which white was purple is now slightly yellow, and the eye which was yellow is now slightly blue (with a very small purple tint). It's still not matching but the amount has been reduced dramatically.
The overall picture is much easier on the eyes than before, right out of the box.
This time I only had to use the selective RGBCMY hue settings on the projector to modify the hue of right eye RED (made it slightly orange to artificially make it brighter), and the hue of right eye MAGENTA (made it almost match the left eye).
I didn't change anything else (no other colour tweaks, no gamma modification, no complicated saturation tweaks). And I got a picture I'm quite happy with.
The picture looks very good, there are no shockingly wrong stuff happening like before, it only looks "slightly" wrong (because the right eye is seriously different from what it should be), so a perfectionist will find this unacceptable but overall I'm happy with the results. Considering my limited choices, I think that the crosstalk free picture is worth the trade-off.
The only real downside I can find is the lower brightness of the picture. I'm used to having almost the full lumen output of the projectors with the special SPAR filters, where I could use the eco lamp mode and the "natural" colour mode of the projectors. Now I have to use the "living room" or "dynamic" colour modes and normal lamp mode, the projector fans are louder and yet still don't really match the lumen output I previously had.
I dreamt of a perfect picture and looked forward to getting rid of the silverscreen, but neither happened : my original choice for LCD projectors doesn't allow a perfect picture and I have to keep the silverscreen (I need that 2.4 gain)... at least until I change the projectors or get a better high gain screen, which isn't going to happen any time soon.
My Epson projectors are rated at 1800Lumen (but projector review measured them at 1200 kumen), and my screen size is 106" diagonal. Considering the brightness I'm getting, I would consider this to be the minimum lumen output recommended for a 100" screen. The omega filters definitely require photon canons.