Okay, as promised, here are some pictures of the projector, the screen (Accuscreen 16:10 - 109") and the ND4 filter (Marumi 62mm). The projector isn't ceiling mounted yet, nor the room is painted the way I want, but that will be the next step.
Attached are screens of same images with no ND4 filter (1st shot) and with ND4 filter (2nd shot). I am not much of a photographer, but I did try my best with my point and shoot camera on a tripod.
The pictures were taken in a pitch black room.
To comment on the Marumi ND4 filter, I have noticed that it does
slightly change the image color on the screen, it gives it a bit more of an orange hue (best seen on the Band of Brothers screen with the Jeep). It is not a big deal but I thought that I will point it out.
With the ND4 filter on, the picture looks more like the projector is in "cinema mode". All the shots were taken in the 'dynamic' setting with brightness=0, contrast=3, sharpness=2, color=0, eco mode, auto iris off. The source was a PS3 and HDMI cable (regular DVDs).
Overall the ND4 does help with the black levels a lot. As we know, it doesn't do anything to the contrast of the image, however, what it does do very well is to tone down the brutal brightness of the projector which at times overpowers the screen (crushes blacks). I have noticed this to be the same as with LCD TVs. Watching them in a pitch black room or with a room with one light on, the black levels never looked good. The ND4 filter acts the same way as turning down the back-light in your LCD TV - your whites don't look as white but your blacks look darker.
With time, the ND4 will have to go probably, replaced with an ND2, but I will cross that bridge when I get there. As a side note, the ND4 filter also helps with eye strain, which I have noticed after 1.5h of watching a move, due to the brightness of the projector.
Overall, the ND4 is a good addition to this type of a PJ. If you have the extra $20, spend it on a ND4 (or ND2) filter.
You can find my pics here:http://picasaweb.google.com/10652155...927/EpsonEX71#
PS: The yellow stuff that I have used to attach the filter to the PJ is a blue-tak-like material made by the same people who made Crazy Glue. I don't have the name of it as I have thrown out the package, but I got it at Michael's - it was like $3. It is basically a play-dough-like material that "holds stuff"
For now it works, maybe later I will try to come up with a 'pretty-er' solution.
PS2: I have taken some of my shots on purpose (like of the bloody gladiator) so that you can compare them to some of the other screens posted here by guys with Optomas (ex: the HD65).
PS3: I know that my pics don't do justice to the projector, the images look way better in real life, but I just wanted to show the after effect of using the ND4 filter.