The focus of the PTZOptics cameras can go out over time, or with a firmware upgrade sometimes. This should be completely fixable, it just takes a few minutes per unit to fix. If you follow the instructions on the attached guide it should solve the focus issues for you. You will need a direct serial or network connection of this to work. Please be sure you are on the latest version of the firmware before trying to fix the focus of your unit. Please follow the instructions on the attached guide to walk you through the process of fixing your focus. If you still have issues please feel free to put in a ticket at PTZoptics.com.