Well, lets see. This is an indoor environment. The camera's mounting point could be as much as 20" from the 4" x 5" field of view but no closer than 6" from the 4" x 5" field. The ideal mounting position for the camera would be 10-11".
Right now there is no need to record the image. I think the resolution limitation here is the mixer and its s-video input and output.
Coming up with a camera that matches the maximum resolution of the projector 1024 x 768 so the camera could be connected directly to the projector in one application and also be capable capable of connecting to the mixer through svideo in the anticipated application would be ideal.
Ideas?