This seamless clamp on gear ring clamps securely around the focus barrel of your lens by tightening one little screw (allen key is included). Once tightened, the slit in the ring disappears and makes the ring seamless. The tooth size is M0,8.
Professional ARRI 0.5 Mod gear with 78 teeth and 10mm wide face. Optimized for Canon and Angenieux ENG lenses. Compatible with ARRI Follow Focus systems.