Vivotek Supreme IP9165-LPR User Manual page 59

Focus (This function applies when using the auto focus lens)
Focus here refers to the Remote Focus, is applicable to Network Cameras that are
equipped with stepping motor lens. The automated focus adjustment function eliminates
the needs to physically adjust camera focus. In an outdoor deployment consisting of a
large number of cameras, the auto focus function can be very helpful when these cameras
become out of focus after days or weeks of operation. And that can easily result from
the effects of natural forces, e.g., shrink and expand due to a wide range of operating
temperatures and the vibration caused by wind.
Use the Media > Image > Focus function to tune for a best image focus on your target
area. If using a non-iCS lens model (RBF lens), you should manually tune the focus to be
close to the optimal, and then use the auto scan focus function.
x
Focus window
Non-iCS lens
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User's Manual - 59