Fotasy BPR Rail Movie Making System 15mm Rod Rig Base Plate with Quick Release (Black) This is a Metal multi-functional Standard Rail System that can be used for mounting HD DSLRs and various accessories like Follow focus/ Matte box etc. This Rail System can be adjusted both side to side and back and forth. There are two camera height riser adapters support the plate. These height riser helps in adjusting the height of the camera as required. The plate comes with both 1/4" and 3/8" camera mounting screws. Hence the large variety of cameras can be used with this Rail System. The Tripod Mounting plate can also be adjusted at any place on the rails. This rail system also has built-in Lens Support which is very useful accessory to support any lens With Arca Swiss Type Mount and Quick RelEase Plate