Network Camera User Manual 
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Click the zoom/focus/iris buttons to realize lens control. 
Notes:   
  There are eight direction arrows ( ,  ,  ,  ,  ,  ,  ,  ) in the control 
panel. Click the arrows to realize adjustment in the relative positions.   
  For the  cameras which support lens movements  only,  the direction buttons are 
invalid. 
Table 5-2 Descriptions of PTZ Control Panel 
Adjust speed of pan/tilt movements 
5.4.2  Setting/Calling a Preset 
  Setting a Preset: 
1.  In the PTZ control panel, select a preset number from the preset list.