Sorry if this has been covered already but is it possible to have the second iris that digitally controls the exposure ? This works exactly same as the way we use DOF adapters out there - we control DOF with the lens in front of the adapter (eg. Nikon still lenses) and control the exposure with the iris of the camera.
Is the Red supposed to have this feature or simply this kind of thing is not possible ? Could be handy, just a thought.