Professionals admit that it's the best in the business. It is not only versatile and precise (as well as quite handsome) but it's a powerful enough to hold one of our bare tube heads and a large soft bank in exact position for days, without any "creep" in one direction or another. In addition to a place to mount an umbrella or other light modifier, the 4040's tilt action lever lifts a fraction of an inch away from the bracket and can be placed anywhere over the full 360 degrees. With knobs to lock-down both the bracket to the lighting instrument and the bracket to the stand, the 4040 provides options for swinging your light source from side to side. To upgrade an existing instrument, a 4039 Copper Stud may be needed.