Visible crew/equipment: In Episode 8, "Cabin in the Woods": When Daedalus finds Archon on the floor of the mansion, he picks him up and helps him into a chair. The camera follows their movement upwards when they are rising from the floor, and there is a boom mic that comes into view, at the top of the screen.
Episode #2.5 - S2-E5
Visible crew/equipment: In the house when Dinah is asking Rose the location of the other children you can see a piece of equipment (probably the boom mic) reflected in the top of the window between them. (00:19:37)