Protect your Canon 5D Mark III HDMI port with the LockCircle LockPort 5M3 Rear Kit. Converts mini-HDMI to full-size HDMI for secure, reliable connections.
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.