This 15mm Rod Holder can be installed to support 15mm rods when using the Battery Grip in the Half Cage setup via the extended bottom plate.
This allows you to mount rod based accessories in front of the camera body such as matte boxes, follow focus systems, or Lens Supports.
This Rod Holder secures to the Half Cage Extension Bracket via a 1/4″-20 screw and locating pins which provides a secure connection while preventing unwanted rotation.