We had one here (Beaverton, OR) that took pictures of every car passing thru an intersection for a whole day. Red light or Green light made no difference.
Even knowing it was a screw-up they sent the tickets anyway
Beaverton is the place where they announced that they were installing the cameras as a "Revenue stream" and safety was secondary to that.
Truth at last!!
If you get one for a Right on Red it should be easy to fight.