I wrote the post quoted above.
I would like to add that Silverfabric also sells specialized polarising filters designed to take advantage of the complex natural polarisation of LCD projectors.[quote]Yes, SilverFabric was one of the sources I found, and probably going to be where I order form.
I was initially going to use them but the higher price would have made me go over-budget. My target was 4000€ for the entire system so I had to fall back on standard linear filters.
Looks right now that at the current Euro exchange rate, I'll pay about $711 for the pair of filters. Not cheap, but the system will be closer to what RealD employs.
Also the LCD optimized filters were originally advertised as >75% brightness were modified to only show >65% brightness, the brightness difference suddenly did not seemed to be worth the price difference for my tight budget, however I do not believe these filters would have solved the colour shift issue which I believe comes from the lens which modifies polarisation.
That may be down to one of the colors on your source being polarised at a different angle. Fairly common on LCD units, and also on an SXRD unit or two. Re: the brightness, the two different lens options I've spec'd - when used with LCoS polarised at one angle - range from 75% to >80%... I'm hopeful, but of course, there's no way to find out until I actually install them.
If you intend the perfect 3D system to go the polarised way, you definitely need a huge leap ahead in silver-screen technology for the home, and especially the grain caused by the aluminium flakes which makes these screens absolute crap in 2D at typical home viewing distances (3~5 metre).
Maybe... but since I have a fairly expensive BDII which is supposed to preserve the polarisation, I'll start with that. I don't expect it to be prefect, but I'll definitely post results and photos here to show the extinction.