DVR Security System Review

Here is the Pelco Spectra IV dome security camera and this particular model has a clear dome as opposed to a smoked one. The camera is fitted with a 16X zoom color zoom lens and as it is an environmental pendant model it has a couple of extra features, these include a built in heater and fan system as well as a sun shield. The outer casing of the dome camera is constructed with aluminium and has a gray finish.

As with other cameras in the Pelco Spectra IV range this one features their ‘Low light’ technology, this feature compensates for low light levels. Software updates for the camera can be uploaded directly to the device, it is fitted with an RJ-45 port for receiving software updates and this can also be as an interface for configuring its settings. To prevent unauthorised users from adjusting the cameras settings Pelco have added a password protection system to the dome camera, this ensures only authorised personnel can adjust its position.

The camera can transmit video using either a PAL or NTSC video signal, it is fitted with a ¼ inch interline transfer CCD image sensor. The image sensor for the dome cameras has a maximum pixel range of 768*494 in NTSC mode, in PAL mode the maximum pixel range is between 752*582. Image focusing is controlled by the camera automatically but if you need to make a specific adjustment the focus does have a manual override.

In NTSC mode the dome cameras has a shutter speed range is between ½ – 1/30,000, in PAL mode the shutter speed range is between 1/1.5 – 1/30,000. The Iris and gain controls for the camera are controlled automatically but both of these features also have a manual override. Although this particular Pelco dome camera is an IP camera it offers an alternative method for transmitting its video signal, this can be done through its passive UTP circuit that is used for transmitting video through twisted pair cabling.

As you would expect the camera has pan tilt and zoom functions, the speed at which the cameras lens pans and tilts adjusts automatically based on how much you zoom in on a scene. You can also program the scan speed and zoom speed of the lens if necessary or set the lens to a specific position by using one of its preset lens position settings.