Vivotek Supreme SD9374-EHL, Руководство пользователя

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VIVOTEK
User's Manual - 73
Focus
Focus here refers to the Remote Focus , is applicable to Network Cameras that are equipped
with stepping motor lens.
Chances are while moving the lens around the surveillance area, focusing can be slow when
zooming in on a complex scene with no distinctive objects especially in the center of the field
of view. If this occurs, you can select the Custom mode, and configure a Focus window in the
middle of the field of view.
With a Focus window in the center or a place you prefer in the FOV, the camera can more
rapidly focus on an object of your interest while scanning through the entire surveillance area.
Focus window
Focus window:
By default, the optimal focus is found on a full view window. You may designate a custom
window within your current field of view to acquire the best focus out of it.
■
Full view
: The focus tuning takes place by referring to the full view.
■
Custom
: You can create a focus window and drag it to a place of interest in your view window.
Note that it is recommended to use this function only when you have a solid object in your view
window that is showing a consistent color or texture. This function will not take effect if you set
the focus window on a distant background.