ACTi TCM-6630 User Manual
Page 35
TCM-6630 Hardware User’s Manual
ZOOM SPEED
This item is used to set the zoom speed for operating the dome camera.
For this model, the options are
SPEED BY ZOOM
If the item is set to
zooming automatically. The larger zoom ratio leads the lower rotation speed.
AUTO CALIBRATION
There are one horizontal and one vertical infrared rays check points in each dome. When the
dome camera position may be moved during installation or maintenance, the relative distance
between the original set point and the check point has been changed. Enable the Auto
Calibration function, the dome will automatically detect that and reset the point baack to the
original position.
DIGITAL ZOOM
With this item, users can enable or disable the 12x Digital Zoom. The Digital Zoom activate
after the full Optical Zoom level is reached.
Digital zoom ration is adjustable from <1> to <12>.
SLOW SHUTTER
The shutter speed determines how long the image sensor is exposed to light. To see clear
image in a dark environment, enable this function and select a slower shutter speed.
The shutter speed is adjustable on TCM-6630. With the slowest shutter speed, users can see
objects in a dark environment under 0.2 lux; or see a smooth video image with a higher
shutter speed. The options are from <1/2> to <1/60>.
NOTE:
The difference between optical and digital zoom is that
optical zoom uses the lens within the camera to draw the
image closer via zoom in or out to achieve the desired effect.
Optical zoom remains the same and the full resolution of the
zoomed image quality. On the other hand, Digital zoom takes
a portion of image and expands that image to the full size of
the image; however the image quality will be reduced.