Originally Posted by liloatavs
Thanks for detailed reply. I have no experience with projectors. I am in the process of buying one and I need to select a screen for a media room that is fully light controlled but has white ceiling and light walls. As I understand in this case I need some ambient light rejection and Slate seems like a reasonable option. SI Pure White and Stewart Studiotek 100 do not offer any ambient light resistance. So the sparkling and hot-spotting obviously is a trade-off one might have to make depending on the room characteristics. As you said DNP Supernova 08-85 is only 0.8 gain (I want something brighter) and the screen size is limited to 120" (I want closer to 130" for 2.35:1 screen). So, if one does not have a perfect room one does not get a perfect picture
Yes, DNP also has a 2.3 gain screen (I have the 120" 16:9 version paired with my JVC X700 and I love it). Does it sparkle? Yes, it does, but it's not nearly as noticeable as other ALR screens (I presume this is due to one or more of the top layers working some magic).
You can order custom sizes from DNP, just give them a call, or shoot their US contact an email.
Another option is EPV DarkStar. It's the only other ALR material that I've seen (and I've seen most) that I could live with.
DNP 08-85 (.8 gain)
DNP 23-23 or HG23 (2.3 gain)
EPV DarkStar 9 (.9 gain)
EPV DarkStar (1.4 gain)
All of those are good choices, depending on what projector you have. If you have a dimmer projector then get the 1.4 or 2.3 gain material. If you have a brighter projector, go with the .8 or .9, or even the 1.4 gain material. The DarkStar 1.4 gain is a good medium point for giving you a little extra brightness and retaining black levels well.
Just make sure you can accommodate a throw distance of 1.8:1 for both DNP & EPV, else you run the risk of hotspotting.
Also, if you need extremely wide viewing angles, that will need to be taken into consideration as well. There's quite a few factors to think about, and there's no single screen/projector combo that will do it all the best. You really need at least 2 projectors and 2 screens for the best daytime and nighttime viewing, but that's impractical for most.
If I could do it all over again, I would probably just get a cheap bright DLP such as the BenQ HT1075 and a DNP .8 or DarkStar .9 or 1.4 and call it a day. Just get the projector first, and request some screen samples and see what looks best to you, in your viewing environment. That's the best advice one can really give. You need to see it with your own two eyes before making a blind purchase based on others recommendations, as there's just too many variables involved.