Cinevate CIDSLR000012 Small Camera Grip (Black) The Proteus Shoulder Mount with Offset Kit enables you to add a shoulder mount to any dual rail Proteus system and/or the Cinevate Core DSLR Rig The offset kit centers the camera in front of you and the whole configuration allows you to adjust height for optimal camera positioning. The offset kit centers the camera in front of you and the whole configuration allows you to adjust height for optimal camera positioning.