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VIVOTEK
56 - User's Manual
The methodology of using the Resize Buttons at the upper left corner of the streaming
window is the same as that on the home page�
Focus window:
By default, the optimal focus is found on a full view window� You may designate a custom window
within your current eld 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 benet from the Focus window function.
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Full view: The focus tuning takes place by referring to the full view.
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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�
6� Wait for the scan to complete� After a short while, the clearest image obtained should be
displayed and the optimal focus range achieved� Use the arrow marks on the sides to
ne-tune the focus if you are not satised with the results.
You may still need to use the ar-
row marks to ne-tune the focus depending on the live image on your screen. “>” means moving
from wide to tele end; and “<” tele to wide.
7� Click on the Enable iris button to save the current conguration.