Proaim 15mm Base Plate is an ARRI standard bridge plate with 15mm studio offset spacing and rods spaced 104mm center-to-center. This Industry standard spacing ensures proper alignment for all of your accessories. It can be converted from RED standard height to ARRI standard height, making it compatible with any type of camera rig. The rubberized top coating prevents Camera twisting and slotted design accommodates non-standard screw spacing. The Dovetail Tripod Plate is 10" ARRI standard plate with safety catches on each end. It attaches natively to OConnor 2060, OConnor 2575, OConnor 120EX and Sachtler Cine 30. You can also attach it to most other tripod heads via screws. It is compatible with all DSLR Video cameras including Blackmagic Panasonic RED WEAPON/SCARLET-W/RAVEN/EPIC/SCARLET. When combined with Proaim Canon Base plate (not included), it adapts cameras like Canon's C100 and C300 Mark II/C100/C300/C500.