One of Steadicam's bread and butter shots is the pass-by. The camera is tracking in front of the actress. The actress approaches, and then passes by the camera. The camera pans 180™ and continues to track with the actress, now from behind.
Done with a Steadicam, the pass-by has a natural look on the screen. We can also change our movements to create different emotional responses to the event. It's easy for us to do. and nearly impossible to do on a dolly.
When operating conventionally, the camera has to tilt up radically as the actress approaches, and then spin 180™ and tilt back down. The extreme tilt angle of the actress is not a very useful shot and can be distracting to the audience.
Let's consider this same shot with a Steadicam. ...