Quote:
Originally Posted by
Viche 
...Too bad they don't have versions of the 2.35:1 movies that are anamorically squeezed into 1920x1080 on the BluRay disc instead of 1920 x 720 with black bars on top and bottom. Then we truly would get more true resolution out of an anamorphic lense.
Yep...if there was a way to do this, you WOULD actually benefit from using a lens. Although this would never happen because it wouldn't play correctly on a normal 16:9 screen (99+% of displays). So we will always be stuck with 16:9 video sources in the foreseeable future (even though many movies, maybe even a majority of new releases, are a 2.35:1 AR...they are still actually 16:9 video sources with black bars on top and bottom).
Quote:
Originally Posted by
Viche 
One thing you might gain besides brightness with an anamorphic lense is less Screen-door effect. Since you are interpolating the 1920 x 720 image over the entire 1920 x 1080 panel, there are more pixels represented on the screen (and more blur). Of course the 4000's smooth screen feature probably makes this a unecessary.
Yes...this is another incremental benefit to using a lens.
Quote:
Originally Posted by
Viche 
The thing I'm still not sure about is why all the fuss over constant HEIGHT? In my proposed theater space I have a limit as to the width that I can make the screen, not the height. With the 4000 as my projector, wouldn't I be better off with a constant WIDTH screen? That way 2.35:1 and 16:9 would both be at there max size. I also think it would be easier to construct a removeable matte for the bottom of the screen when I'm in 2:35:1 than two side sliding mattes if I were to go with a constant HEIGH setup.
There are several reasons for constant height being the primary focus. Most 'epic' big blockbuster movies are in a 2.35:1 AR. So people with CIH systems want these 'epic' movies to feel more grand than a more run of the mill movie that is 1.78:1 AR. Doing a constant WIDTH system will yield a much larger image for your 1.78 AR material vs 2.35:1 AR material. So there is a mental thing here where the bigger blockbuster movies are usually 2.35:1...so these are the types of movies that you'd want to get the most oooo's and awww's from.
So one reason for constant image height is a mental thing as I touched on above. However...the other more technical reason is that our eyesight/peripheral vision is more sensitive to height than width. So it is easier to go wider than taller w/o getting an image that is too overwhelming. For instance, if you are sitting 10-12 feet back and you personally find that a 100" (49.5" high x 87.5" wide) 16:9 screen is the perfect size. You could probably use a 125" (49" high x 115" wide) 2.35:1 screen and not be overwhelmed by the extra width. However...if you had a 132" (64.5" high x 115" wide) 16:9 screen...the extra height of 15 inches would probably be too much and the image would be too overwhelming.
So long story short...since humans tend to be more sensitive to image height than width, in a CIH system, it tends to be generally more reliable to size your screen via height. So you pick a height that you like best for your seating position and then everything you watch will be the same height.
As stated before, everyone has different tastes and the 'holy grail' of anything in theater varies from person to person.
I personally like the idea of CIH because I want the more epic/blockbuster films to 'feel' the grandest in my theater. I DON'T want the anamorphic movies to have less viewing area than 'chick-flicks'.
CIA (Constant image area) is a way to maximize every single AR in either vertical or horizontal directions...but doing a 4-way masking system just wasn't worth it to me. And I actually like the idea of movies with 1.3, 1.78, 2.35 AR's respectively getting more viewable area and an increasing grandeur feel.