Originally Posted by drpete12
What I don't understand about this statement is how you can have the same size for other content. Lets say I go with a 10 foot wide 2.35 screen ( I just picked 10 feet randomly). Then when I watch 16:9 I am significantly reduced in size keeping the same height.
If I go with my idea than I can have a 10 foot wide 2.35 and a 10 foot wide 16:9. I do realized that the center of the screen will have to go up when switching from 16:9 to 2.35. How much I don't know and will have to look into the math to make sure projector zoom/adjustment can accomplish this.
Do you think the 2.35 will look akward and way too high from where it would be if I did a regular 2.35 screen?
Maybe this will help you understand. Let's use my 130" scope screen for the sake of argument. The current screen is 51" tall and that is as tall as I can really go in my room. So I have maximized the screen height for the allotted space. So when I watch an HD program on this screen it is taking up a 91x51 piece of the screen. Which is the exact same area it would be taking up if I had a 104" 16:9 screen instead. So here's the math:
16:9 picture area of 130" 2.35:1 screen (91"x51") = 32.3 sq/ft
104" 16:9 screen (91"x51") = 32.3 sq/ft
So as you can see I lose no active screen area or impact when watching 16:9 material because the screen is as tall is it can be. The same math holds true for 4:3/1.37 material.
Now let look at the active screen area if I had a CIW setup instead using the same 104" 16:9 screen example.
104" 16:9 screen showing 16:9 content = 32.3 sq/ft
104" 16:9 screen showing 2.35:1 content (91"x39") = 24.7 sq/ft
This is what the majority of setups see and what you are proposing by moving the 16:9 screen up. Scope content is smaller.
So what happens with a scope screen showing scope content? This:
130" 2.35:1 (120" x 51") screen showing a scope (2.35:1 film) = 42.5 sq/ft
As you can see the scope screen showing scope content is a massive increase in screen area. Almost doubled. Again, the key here is the screen height. If you have maximized this, there is zero degradation of other content shown.
As far as the picture height goes on your proposal to lower the screen partway, that would depend on how far down the screen housing is. I suspect it would be distracting if the screen housing is not far from the ceiling. Projector wise the amount of lens shift and whether or not the project will stack the black bars will factor into whether it works.