Vivotek FD8165H User Manual page 55

Auto Focus:
Click the Fine-tune focus or the Full-range scan focus button for the camera to automatically
find the best focus. The process takes about several seconds to complete. The Focus pointer will
stay at the optimal location on the slide bar.
You may still need to use the arrow marks to fine-tune the focus depending on the live image on
your screen. ">" means moving from wide to tele end; and "<" tele to wide.
■ Full-range scan: If selected, the auto focus scan will be performed throughout the complete
range of focus. The full-range scan takes a longer time to complete. A full-range scan usually
takes approximately 3 minutes or longer.
■ Enable iris: Click to restore and use the normal iris control.
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. However, you can not place a
focus window on a distant background, e.g., a hall way that stretches away for 3 meters or farther.
Doing so you will not benefit from the Focus window function.
■ 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.
VIVOTEK
User's Manual - 55