I am not one to jump in an defend BD. I just wanted to offer a suggestion on the test:
I can't see how bright the room is in the pics but judging by the washed out look of the white screen, I am assuming that you have at least some room lights on (which makes sense if you are testing the BD screen material). A point I would make on the viewing cone thing, is that you should test it again with the lights off too. On my black-screen, the retro reflective surface makes the viewing angle narrower in a super bright room. It is still fairly wide and certainly wide enough for any seat on my couch, but, with the curtains open on a sunny afternoon, there is a noticeable drop in brightness from the extreme side of the room. With the white screen, I can't see a watchable image, even from front and center, in that level of light. If I make the room dark enough to get a watchable image on both, the black screen is bright enough to watch from the sides without any issues. It is also watchable from the sides with room lights on in the evening.
The point is, comparing the viewing cone to a white screen that can't produce a watchable image from the best seat in the house with that amount of ambient light, is not an ideal comparison. If a drop in viewing cone is a key concern, check performance with the lights off, as you would need it to be for you current screen, and then see if you can live with it. In a bright room, being able to see a good image from anywhere is an improvement over the white screen that you have now.
I would also test it with some static content with solid colors. I use the netflix selection page, as an example, because it is often harder to tell with movie content which is different at every point on the screen. Perhaps the sample happens to be on a dimmer part of the screen. ...
Finally, I would say that testing those tiny squares in front of a white material (or any brighter screen color) is going to make the darker material look artificially worse, in a way that does not reflect reality. It is a similar effect to comparing plasma TVs to LED backlit models in Best Buy. Side by side, the plasma screens look super dull. Almost too dull to watch. While they are not as bright certainly, they don't look that dull when you get them home. In fact many people, including me, prefer the image from a plasma screen over an led lcd. Our brain is drawn to the brightest screen.
When I test new black screen materials, I make sure to do it individually before deciding if it works or not. A number of black materials that I initially dismissed, turned out to be viable when I revisited them individually. This will be especially important with the BD 0.8 gain material. Try it again without any other screen and I bet it will seem brighter to you.
As fun as side by sides are, and as great as they are for marketing, our eyes won't let us get an accurate view like that. Rating performance out of 10 individually is your best bet in my opinion.
Originally Posted by Sancho101
I ordered some screen samples of the Black Diamond 1.4 gain and .8 gain. I currently have a cheap $100 108" 1.0 gain screen with an Epson 8700UB 1, 600 lumen projector. I'm not impressed with the Black Diamond screen samples I received. The off axis viewing is really poor.
I taped the samples to my existing screen. The 1.4 is on the left and the .8 is on the right. The first image below is straight on. The second image is about 45 degrees off-axis. The last one is also taken at about 45 degrees off-axis. These were taken in dynamic mode in high (normal) lamp mode with two lamps on behind me.
It looks fine when viewing straight on with the screen. When viewing even slightly off-axis the image darkens substantially and has a strong blue tint. Not exactly something I would want to use for watching sporting events with a large group of people in my living room which is why I even considered such a screen.