How do I operate the FocusONE? Ashley July 26, 2018 20:29 Follow Please check out our User's Manual video below to learn how to operate your focusONE! Related articles My Focus Module skips teeth and does not stop at macro or infinity. What can I do? How do I fine-tune the Focus Module? Why is there play on the knob of my FocusONE? Is something wrong? Do I need batteries for the Focus Module? While using Motion Kit with Focus Module, my Focus Module skips teeth and does not stop at macro or infinity. What can I do to stop this? Comments 0 comments Please sign in to leave a comment.