I guess in one respect it doesn't change because the theatre seating remains the same whether or not the presentation is 3D or not. That may help with the focus issues you're having but that doesn't really help overall.
I think you've come to the same conclusion I did. I prefer closer seating distances, and I too think that for 3D to work well, you do need to be close(r) to the screen. When a 3D image hits the screen border and is quite visible when it does it, the 3D illusion collapses. I really noticed this with Avatar because I was not able to sit in my usual seat, and was sat further back. I found the movie was less immersive or involving, and the 3D didn't really add anything, especially when the effect hit the borders, where it brought attention to itself as a distraction. Not the best movie experience for me.
I'm sure not everyone feels the same, but for me, you need to be close enough for the 3D to remain as intact as possible. So I guess that IMAX is probably the best format for 3D to work at its best. At home with CIH, for some of us it's going to be a bit of a compromise.
To get the best from a CIH set up, you should set up for 16:9 - make sure you are sat close enough so that 16:9 is as big as you can comfortably watch, and then 2.35 should be wider and more immersive, as designed. If you do it the other way round or don't take 16:9 into account when deciding on the screen size and seating distance, you will find 16:9 looks too small and may be tempted to zoom it larger on the 2.35 screen. 3D seems to add another variable into the mix for some of us.
If we use a 16:9 screen with top and bottom masking and use it as a 2.35 screen most of the time (and with normal 16:9 content within it, and sat suitably close), you could use the full height of the screen for the occasional IMAX movie or 3D, but that could be a problem finding a pj that can fill the screen for all circumstances, and being able to zoom enough and then not have (source or display) pixel visibility issues as well.
Originally Posted by elmalloc
Who says Cameron is "right" and why do we care about him so much - lol!
I trust Gary Lightfoot more than James Cameron.