Yamaha CS-700 Operation Manual page 34

The current "active" Pan, Tilt, and Zoom (PTZ) settings of the camera will be
shown in this page. They cannot be changed from the Web UI. The PTZ
settings can be changed using the Service Application described later in this
document, or using UC applications that offer camera control.
Note that in the CS-700 Pan and Tilt settings are only effective when Zoom has
been set to a value greater than one.
The ZOOM setting allows the Operator to electronically adjust the camera zoom
up to about 2.25x from default.
Pan and Tilt default to zero, Zoom defaults to one.
Clicking the "Set PTZ Home to Active Position" button preserves the current
Pan/Tilt/Zoom settings as the camera home position. The CS-700 will return
to this position whenever a USB connection is re-established.
"Return to PTZ Home" will reset the active PTZ settings to the PTZ home
settings.
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