[quote=Mtntopview]
By the way, what can the lanterns detect? Could they detect the Matrix of Leadership?
[/quote]

Electromagnetic Scanning: The ring has a wide range of detection abilities based on the imagination of the user. If one can conceive of it, they can detect it. Magical effects like clairvoyance, seem to be the most difficult for the ring. All electromagnetic phenomena are within the range of the ring, including radio, television, infrared, ultraviolet, and high frequency band communications.