AVer DL30 Manuel D'utilisation page 26

Pan-Tilt-Zoom Control
Manual Pan-Tilt Speed Adjustment
To operate the PTZ Camera motion, use
and to adjust the camera view position and use
to zoom. Select
Adjust the speed of manual Pan-Tilt.
[Note] The max manual pan speed is 90°/sec. The max manual tilt
speed is 45°/sec.
17
,
to go back to default position.
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and