Originally Posted by chriscmore
This is the place to ask. Fortunately everything is fitting into one thread.
👌🏼 Excellent. I have a few questions concerning the Glacier White screen material. I've read that the coatings that go into screens to add gain begin to cause artifacts and shimmer as they get above 1.3, and that even some 1.3 gain material shows shimmering.
My question is, is the 1.3 gain a perfectly smooth surface with perfect uniformity, no sparkles or shimmering (and I can't remember the term for the image being perfectly lit from edge to edge) with a very wide half angle, no hotspotting etc? Is there such a thing as a better or worse white screen at the same gain, and why? I'm looking for the very best screen I can find, as I am very big in PQ, have an issue with any artifacts/shimmering/sparkles, want the smoothest surface I can find with a gurantee of no hotspotting etc.
I was originally going with a DNP Supernova after finding out the 0.8 gain ALR material has no shimmer or sparkles, BUT I have a lower lumen projector (SONY VPL-HW45es 1800 Lumens) and hear that the whites can look a bit dull unless you can really light the panel up with a hign lumen projector. So, I'm planning to get window treatments so that my den can be fully light controlled during the day and am looking for a white screen material. I was recommended the 2.3 gain material by DNP and was told by the sales department that there was no sparkling/shimmering, but learned from owners and 'almost owners' of this material that it does in fact shimmer and show sparkles. I looked into the Parallax model by DA-LITE, but I'm afraid the lumen issue is the same. So, I am trying to essentially find the "perfect" white screen, though I do wish I could have a tad of an added black level.
Does anyone mind shedding some light on the quality of the Glacier White material, how the 1.3 gain material helps above 1.0 gain (in all aspects from color uniformity, black levels, color brightness, white brightness - possibly a tad of help with overall depth of image appearance/image saturation when there is some ambient light)? I'd appreciate it if someone could tell me their personal feelings on why or why not the Seymour Glacier White (or perhaps the gray as well) is as good or better than more expensive companies. Is the texture smoother on a white DA-LITE, Stewarts Screen or any other manufacturer? Anything anyone is willing to share will greatly help me determine what I need to do as far as a screen, and I would more than greatly appreciate it, as samples simply don't give me enough visual feedback of the end result of a 110" image.
Details on my setup that may help with advice:
Wall color - Flat, dark Wine Red (but called Red Delicious)
Seating distance 12-13'
Ambient light - 2 table lamps, 2 windows to the left, 1 on the right of the room, and a plethora of canned lights in my kitchen behind the seating area in the den (which I'll have to keep turned off if I purchase a white screen). Planning to have blackout window treatments installed if I have to go with a white material.
Projector is about to be ceiling mounted in the Kitchen, between 13'7" to 17 feet from where the screen will be. The throw distance will depend on what model screen I finally decide on.
SONY VPL-HW45es at 1800 max lumens
Den measurements 13'7" X 20-23'(I haven't measured the width)
The screen size will be 110" diagonal, or 95-96" across, in 16:9 format