Originally Posted by zheka
You may first want to find out how the two compare in terms of gain and acceptable viewing cone.
He has no need to want...or wait. Here's the skinny.
SF v.2.5 3.0
is darker than BW, but still it has higher gain than BW (1.1 vs .85)...and it's viewing cone is almost entirely unrestricted when judged by the fact that at fully 80 degrees off-axis it hasn't lost even 20% of it's on axis gain. Not 50%....not even 30%....but less than 20%. So little in fact that almost no one who has actually ever made a SF Screen has ever reported there being "any" noticeable loss of gain at even 90 degrees off axis.
What this means is that the term "Half Gain" doesn't even apply to SF. That is not to say that it does apply to BW. No...BW also has a very wide viewing cone. But BW is a sub-1.0 gain screen that essentially starts out attenuating light...just has any Neutral Gray does. It simply uses Aluminum to low effect....not to accentuate light but rather to simply enhance color. And...to even prevent the aluminum content from horribly pushing Blue, it must be mixed in disproportionately small amounts into a Beige base, and in such manner that the Base paint masks the aluminum's reflectivity by a substantial amount. So one must consider that without a beige Base, aluminum would essentially be a very poor choice for use as a reflectivity enhancing agent. And with a beige base employed, it winds up being only a marginal amount better than a neutral Gray derived via conventional tenting processes.
So given that with SF there is no determinable loss of gain to the "eye"...at any angle of viewing, and a obvious difference in overall performance, there is no real valid need to compare the two, .......but if one wants to bring in any additional comparisons based on the worthiness of SF as opposed to BW, as far as ambient light performance...especially at SF 3.0
+ levels....it all becomes kinda moot. One determining factor in that? Nowhere can you find photographic results of BW screens that show performance even remotely akin to SF. But you sure have literally thousands of such examples of SF screens,and a wealth of End Euser testomonials to that effect.
But really...and honestly, if you want to read anything favorable about BW, you'll have to look elsewhere. You won't find anyone expounding about it on here. For that matter, the reverse is true elsewhere as well.
Pick your poison. But choose wisely.