DVR Security System Review

There are a variety of Pelco Spectra dome cameras available to choose from, this particular model is the DD4CBW35-X. The security camera is compatible with both PAL and NTSC video formats and it has a built in memory that stores information relating the settings of the camera. This feature is useful for reverting the camera back to a previous position should its lens move due to events such as alarm activation.

The outer casing of the camera is designed to withstand the elements, its metal casing is composed of aluminium, there is also a built in heater and fan. You can choose from a selection two different dome coverings, these vary slightly in that one is a clear dome and the other is smoked. A ¼ inch EXview HAD image sensor is built into the camera, in NTSC mode it has an effective pixel range of 768 (H)*494 (V), in PAL mode the range is 752 (H)*582 V.

The zoom capabilities of the camera are suitable for seeing far away objects in detail, there is a 35X optical zoom and a 12X digital zoom. The shutter speed can be controlled by the user or by the camera itself, the shutter speed range in NTSC mode is 1/2 ~ 1/30,000, in PAL mode the value changes to 1/1.5 ~ 1/30,000. The Spectra IV is designed to operate effectively in both day and night, the exact detail the camera picks up will vary depending on whether you select PAL or NTSC modes, you also have the option to select either color or black and white image settings.

A synchronization system is built in to the camera and you can adjust its phase mode with the use of a remote control. The camera is able to adjust its iris automatically, alternatively you can experiment with its manual iris control feature to get the best picture. White balancing can be adjusted by the user or the camera can control it automatically and there is built in image stabilization.

Pan, tilt and zoom functions are built in to the camera, the cameras lens is able to rotate 360 degrees continuously. The vertical tilt range of the Spectra IV is +2 degrees to –92 degrees. There are a number of preset speeds that you can select that have an impact on how quickly the PTZ functions respond, the lens can pan at a speed of 400 degrees per second and tilt at 200 degrees per second. You can control the cameras PTZ speeds manually but to do this you will need an appropriate control device.

Check the latest price on the Pelco Spectra IV 35X Pressurized Dome Camera