I think about what the viewfinder of my concept camera would look like and I have an idea. The viewfinder would have a small range-finding image projected in the center (like a normal rangefinder camera) of a HUD-like display, and you could move said image to any part of the HUD. There would be no need to focus and recompose a shot.

This idea is similar to moving the focus point on a old Konica Minolta Dimage A2 I owned. That focusing and metering feature made the A2 really cool to use. Now replace that with the range-finding image. You now can apply manual focus to any part of the image without moving the camera.
