
Originally Posted by
David Mullen ASC
Well, anamorphic would gain you a bit more camera resolution compared to cropping to 3.19:1 essentially (or 3.55:1 if you want to double 16x9 horizontally.)
But it doesn't help much if the projector is limited to 2048 x 1200 unless you have the option of somehow fitting a 1.3X anamorphic projector lens on the camera and a 1.3X Hawk anamorphic lens on the camera, keep the same squeeze ratio through post.
Otherwise, you might as well limit the amount of cropping of the projector to 3.19 : 1 -- do you really mean inches instead of feet, that the screen will only be 16.5' x 5.16'? If so, a 2K projector will be fine.
In that case, just crop the Red 4K 2:1 image to 3.19 : 1 and downsample in post to 2K -- how does this projector deal with a non-standard format like this? The image would be 2048 x 642 pixels. Or doe it require an HD 1920 x 1080 signal that is just letterboxed to 3.19 : 1?