Visible crew/equipment: In the scene where Laura is being attacked in the desert, the camera swings wildly. During this swing, the entire crew becomes visable for a split second. You can see Clint Eastwood (who also starred in the film) sitting in his director's chair, wearing a white t-shirt and watching the filming closely.
Visible crew/equipment: The shadows of the camera, crew, and film equipment are visible several times in the sequence when Clint is riding into the Native American camp and the two men are buried up to their heads. The equipment is most visible in the scenes when the sun is facing the Native Americans.