The Haoge Adapter Ring enable you attach a 49mm thread filter to Fujifilm X100V X100VI camera. Original Fujifilm X100VI X100V lens cap can be mount onto the adapter ring. Note: To use the Adapter Ring, the user has to remove the ring on the top of the lens of Fujifilm X100V X100VI. Note: It can't be used for Fujifilm X70 X100 X100S X100T X100F Original lens cap. Note:First remove the front ring of the camera lens , Before installing the adapter ring