With the later version, the "tear drop" version, you have to use a rolleifix to get the proper alignment. With the older version the pano head rotates on the axis of the center of the lens rather than the center of the camera. With the newer version the turning axis is the tripod mount of the camera, the center of the camera, rather than the center of the lens. So it's function is much the same as if you just turned your tripod head without a pano head attached. If you attach a Rolleiflix to the top of the "tear drop" pano head the turning axis will be the center of the lens. This gives you an image alignment that is the same as a pano camera, so all said and done it is a true pano shot and your multiple images will line up more correctly (with the necessary overlap).