AF mode camera is fine tuned focus at 1 meter object distance at factory. If you install a new M12 lens for the first time, you need to focus manually and then calibrate it.
1) Log in to the ZowieCAM web page
2)Click ‘Setting->Camera->Image->Start Calibration ,then manually twist the focus ring until it is completely sharp.
(clockwise is to focus far and counterclockwise is to focus near).

