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 Why is there play on the knob of my FocusONE? Is something wrong? Focus Module How do I teach a new lens to the Motion Kit? Where may I purchase your products in Singapore? Slide Module v2 Comments 0 comments Please sign in to leave a comment.