The 120EX head has a given payload capacity of 120 lbs (54 kg) for the ±90° tilt range. With traditional counterbalance mechanisms any payload heavier than this maximum weight can’t be balanced.

Platform for 120EX: OConnor Plate, OConnor Geared Plate, 120mm Euro Plate, Panavision Dovetail Plate, Arriflex Dovetail Plate, Arri 24' (60.96 cm) Plate