You can move the camera in both 3d and camera view using those controls:
Camera Controls | ||
---|---|---|
Mouse Button | Modifier | Command |
Left | Alt | Camera Rotate |
Middle | Alt | Rotate Pan |
Right | Alt | Rotate Zoom |
While in camera Window the zoom will be in 2d.
You can use F to frame the model to the camera in 3d or reset the camera transformation in camera view.