DVR Security System Review

This particular dome camera in the Pelco Spectra IV SE series is the SD4C22PGE1, the dome camera falls under Pelco’s ‘Environmental Pendant category which means it has a built in heater and fan and a sun shield. The cameras outer casing is colored light gray and it has a clear lower dome and it is constructed from aluminium. The camera uses both PAL and NTSC video signals and it has a color zoom lens, it has a 22X optical zoom and 12X digital zoom.

A ¼ inch EXview HAD CCD image sensor is built in to the camera, in NTSC mode the camera has a maximum pixel resolution of 768*494, in PAL mode the maximum resolution is 752*582. The camera is capable of capturing video footage in low level lighting, it has an automatic iris control but you can use its manual override if you need to set the iris to a specific position. The camera has a shutter speed range between ½ – 1/30,000 in NTSC mode, in PAL mode the shutter speed range is between 1/1.5 – 1/30,000.

The cameras lens has a 4-88mm focal length and there is a built in synch system, the camera also has a 2:1 interlace scanning system. The camera has a 128X wide dynamic range and it has automatic white balancing, this has a manual override so you can make specific adjustments. Motion detection is built in to the camera and it has electronic image stabilization, Pelco have also added surge protection to the device and this may prove useful if your premises should experience an electrical fault.

An internal memory has been added to the camera, this can be used to set the camera to a specific position if there is an interruption to its power source. The camera also has a password protection system so you can ensure only authorised personnel can operate its functions. The camera itself has 7 alarm inputs and there is also an RJ-45 data port, this can be used to upload software updates to the device.

You can set the cameras lens to follow a specific pattern, up to 8 patterns can be programmed, the camera also has pan, tilt and zoom functions. The camera has a 360 degree continuous pan rotation capability and an unobstructed vertical tilt range between +2 degrees and –92degrees. You can vary the speed that the cameras pan tilt and zoom functions operate by using a joystick or mouse interface, the preset pan speed is 400 degrees per second and the preset tilt speed is 200 degrees per second.