Originally Posted by d james
very interesting findings, I had always wanted to try this with a couple of Epson projectors to see if it would work (assuming there wouldn't be to much misalignment with 6 separate LCD panels), but figured it wouldn't since I hadn't read anyone trying this before. I might just have to try this then. I suppose a couple Epson 5020s would give me 4800 max lumens, that should be plenty for any size screen, LOL. What was your exact setup? Did you use a blu ray player and how did you output two separate signals to each projector? Any other updates on how it has worked for you?
In my setup, I have a Blu-Ray player connected to an AV-Receiver (Denon AVR 3312), which has 2 HDMI outputs. I just connected the HW50 and the HW30 at those 2 outputs and made sure that the AV Receiver is in parallel output mode. Then I set the image mode in both projectors to 'Game' in order to avoid any unnecessary and maybe different post-processing of the signal. Also disabled any postprocessing like Reality creation in the HW50 which could introduce a different lag time. Like this is workes very well. The only disadvantage is that I still cannot get an a 100% perfect alignment (There is always a maybe 0.5 pixel misalignment in the periphery somewhere when I have a perfect alignment in the center) (still very good) which makes the picture a little bit softer compared to a single projctor solution. Of course the perceived sharpness also depends on the seating distance. I can compensate this with 'Superresolution' in the Blu-Ray player but I would like to have more native sharpness. The 'problem' is that with my Benq W7000 I have a very strong competitor, which has an exceptional good native sharpness. Even a single HW50 cannot compete with that. I read here that the HW50 does not reproduce the 1080p signal 1:1 in 3D mode, which could be the reason for the slightly softer image even in a single projector setup (when you turn off Reality Creation):
In my search for the perfect 3D solution with my current projectors I'm still in a dilemma between the Benq W7000 and the HW50/HW30 setup.
+Flicker free (60Hz shutter speed per eye)
+Frame Interpolation in slow to medium camera movements (I use the setting 'Low' which makes 30 fps out of the original 24 fps in a movie)
-Brightness could be a little more on my 106 inch screen
-Frame interpolation produces some artifacts in fast camera movements (especially in real life movies like Avatar and The avengers)
-Colors in native lamp mode (even with some color tuning) which I use for acceptable brightness (2000 lumen)
-Contrast in dark scenes, but still not as bad as many say
+++Exceptionally bright!!! (3000 Lumen)
+Movement in fast action scenes, without frame interpolation (very natural, without artifacts)
+Contrast in dark scenes
+Black floor (but with the two projectors it's not as good as with a single HW50)
+Colors (even in Native lamp mode which I use for more brightness, the colors are much better than the native lamp mode with the W7000)
-Flicker in bright scenes due to 48 Hz shutter speed per eye
-24Hz Slow to medium camera movement produces some flicker
-Some ghosting in diffcult scenes
So, all in all, I would rate the Benq still better in movies which have a strong 3D effect (chances of ghosting is much higher there), like all IMAX 3D movies and animation movies. However, in certain action real life movies scenes, where color reproduction, a believable brightness (sun light scenes) and artifact free movements in fast action scenes is important, the HW50/HW30 is hard to beat. However, for example in 'Hugo' I still like the Benq W7000 more because this movie is prone to ghosting. I have to do some more tests:D Lol, I think I watched every of my 3D movies now 1000 times...