Visible crew/equipment: Skyler is making copies and the scene starts with a shot looking down into the copier (the green light). When the shot lightens a bit as the copier continues, you can see the camera lens. This makes sense because the camera is sitting directly on the copier looking down.
Visible crew/equipment: In the flashback scene where Jesse breaks into the Whites' house and starts pouring gasoline everywhere before Hank stops him from burning the house down, you can see the outline of a crew member exiting the right side of the dark living room at the beginning of the shot.
Visible crew/equipment: In the scene at the very end, Walter breaks into Jesse's house to take all of their product. As he leaves the kitchen, just as he passes the fridge, Jesse (passed out in this scene) or a crew member can be seen peeking around a doorframe.