How do I assemble the Focus Module? Ashley July 27, 2018 20:54 Please check out our User's Manual video below to learn how to assemble the Focus Module! Related articles Can I use FocusPLUS PRO for zooming? How do I align the FocusONE's control knob? How do I operate the FocusONE? Do I need batteries for the Focus Module? Focus Module Comments 0 comments Please sign in to leave a comment.