Originally Posted by gnarlycow
I am in the beginning stages of creating my first home theatre. However, I'm a bit confused when it comes to the projector and the different aspect ratios. I want to watch my movies in 2.35:1 format, but want my tv to be in 16:9 format. I don't want to do a constant height setup because then my 16:9 will be too small for my liking.
As far as I know, you can get the 2.35:1 by either buying a projector with a zoom lens (1.3x minimum I've heard) or by adding an external anamorphic lens. Will either of these solutions be able to change the height of the image being presented depending on the format of the video source without me having to manually change the settings? I was hoping to be able to do a motorized screen cover to block out the parts of the screen that aren't being used as well.
Assuming it is possible to do, do I just purchase a 16:9 format screen that is wide enough to fit my 2.35:1 and then just mask the screen vertically when I go to 2.35:1 format, and then mask it horizontally when I go to 16:9 mode? Is there such a thing as constant width? I've only heard of constant height setups, but never constant width. Perhaps I'm making this more complicated then it has to be.
Any help would be greatly appreciated.
With similar desires as you--i.e., wanting a pic as wide as possible for 2.35, and high enough for 16x9--I went with a hybrid size screen, 144"W x 72"H, i.e. 2.0 aspect ratio. For 16x9, I thus have a 128x72 size pic, with 'black bars' on the sides; for 2.35 I have a 144x61 (or whatever, depending on 2.35, 2.40, etc.), with 'black bars' above and below.
With 16x9 I lens shift the pic to line up with one edge of the screen and have a masking panel I slip in the other side (1.5'' think styrofoam panel, covered with ProtoStar material). For 2.35 pics I zoom the projecctor to fill the 144" width and lens shift the pic to line up with the bottom edge of the screen, thus having a black bar at the top (which I don't bother to mask since it is quite ignorable at the top).
All the zooming and lens shifting is stored in 2 memory settings of the projector (Sony1000), so it is a very painless procedure shifting back and forth between these two modes. Everything works like a charm and has been the wisest decision I've ever made for my setup!