JVC V.NETWORKS VN-C30U Instructions Manual page 37

Convenient Function
When double-clicking in the window, the clicked position is brought to the
center of the image. (Only when JPEG image format is selected.)
Caution
During the Pan/Tilt operation, the images may pause for a few seconds.
This is because the position correction function is automatically being
operated and this is not a malfunction.
Caution
It is not possible to move
beyond the Pan/Tilt limits but
this is not a malfunction.
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