Can I use a matte box with FocusONE? Ashley July 22, 2018 22:27 Updated Follow Yes, a matte box may be used with the FocusONE on the PocketRIG 2 as shown in our video below: Related articles Why is there play on the knob of my FocusONE? Is something wrong? Can I operate the FocusONE without a lens gear attached? Comments 0 comments Please sign in to leave a comment.