This spacer attaches to the underside of the SYSTEM ZERO Focusing Plate and elevates the entire assembly by one inch. This extra height allows easier access to the Focusing Wheel assembly's thumbscrew and permits a more forward and better balanced placement for any tripod QR plate.
The Spacer is designed to allow the sliding fine adjustment of the Focusing Plate, even with the Spacer installed. The SYSTEM ZERO Spacer is a modestly priced and very desirable option for those who routinely use a tripod or monopod. We strongly recommend this excellent option to all SYSTEM ZERO users.