Visible crew/equipment: Right as Young Biff starts to chase after Marty through the tunnel, there is a shot of the wheel spinning around, and you can see the camera crew reflected in the hubcap. (01:29:45)
Visible crew/equipment: On some shots which look back at Ray when he's driving his pickup, it can be clearly seen at the bottom of the picture that the front wheels of the pickup are sitting on a trailer, which is itself being towed by the camera vehicle.
Visible crew/equipment: When Prancer is loose in the Riggs' house, he walks past and knocks down a television set. Right before he knocks it down, you can see the outline of the camera crew in the TV.
Visible crew/equipment: When the neighbors are shooing the cops out, the husband opens the door. As he does the reflection of a crew member in the door glass.