Originally Posted by Scott Douglas
I had a thought today, and I'll put it to the test this weekend when I build my screen. What about the SM Matte backwards. Projecting onto the white, non-coated side, with the Silver Matte Side as the back side. Just wondering... I'll be posting some pics this weekend I have a feeling.
A Semi-Translucent White paint over Silver Metallic(SM) is a well known and accepted application. Most famously known as "SM-MM" (Silver Metallic-MississippiMud ) And such is also the basis for "Light Fusion" (White over a Mirror / Mylar) Thin White PVC Sheeting with a SM back coat.....ditto. And you bet, Cloth over Mylar has also been tried. Not "Spandex Cloth" though.
Originally Posted by Duke Broadway
Good idea. I think the white spandex is not matte in sheen though. I am ay work right now so cant confirm. I wonder how much the stretch of the spandex impacts pq. As in just draped vs stretched.
The surface has to be completely Flat...so merely "Draping" isn't a'gonna cut it. However, Spandex with minimal Stretch would obviously have a tighter weave surface than when stretch to 75%-80%, and the closer the weave, the denser the surface, the more reflective the surface.
Not sure where the idea of having to stretch Spandex so tight that it might allow too much light through came from. It's been accepted that using just enough stretch to effect a smooth, evenly laid out surface is most ideal, and the aural difference between a tightly stretched "Open Weave" and one only stretched "just enough" is so minimal it's not even worth a thought.
A Silver Metallic Spandex backing under White could...and would give a noticeable Contrast boost...as far as delivering a uptick in black Levels and color depth....but only if the two surfaces were "touching"
and the SM did not have an obtrusive amount of "Sheen".
Shooting onto a correct pure SM Spandex would do the same only 10 fold. And If that increase is all good.....that would be a incredibly good thing.
However in the past it's been more a case of taming SM by putting a coating over it than using SM in a "too pure" state itself. Which is a shame because it's obvious to anyone that disregarding sheen'ing and hot spotting, Silver Metallic makes a screen "PoP" like nothing else.....color are almost livid...and Blacks "obsidian like". Perhaps most sadly....Pure SM surfaces are best used in the dark....not with ambient light ...because the Screen uses ALL light it receives equally...all light.
I would always be excited about the prospect of finding any "Silver" surface that can do a great job. So far the only real "keeper" is S-I-L-V-E-R, a "sprayed on paint" application.
White is White is White....and that's alright....as long as the room is as dark as night. Let ambient light enter into the fight, and from your contrast it will take a big bite.
Don't worry....I'm through.