Hmmm. That diagram shows that I should have about a 120" diagonal 2.35:1 screen... Of course that means that I would have to chuck my $660 Carada 16:9 Brilliant White screen and get a new $744 Carada 2.35:1 High Contrast Grey screen. Oh, and then a $1200 anamorphic lens to really get some good use out of my projector... I don't think that I have the extra $2000 to change it out now...
Oh, for the Prismasonic H600M Anamorphic Lens that Randy has, the web site claims that it will take a 16:9 and go to a 21:9 (2.333333:1) so that would be a neither of your numbers (2.35:1 or 2.39:1)
