after 45m (150ft), a 1 ampere camera can be powered up with 3 amperes (Note: Although, it works perfectly, but not a recommended method to do so and exceed the 45 meter (150 feet) limit).Īnalog cameras use the BNC cable for video signal to send to the DVR (Digital Video Recorder). The voltage drop can be reduced by providing the power separably to the cameras or providing high amperes power supply (e.g. Lets briefly discuss the different technologist used for PTZ cameras.Īnalog PTZ cameras has a range of up to 300 meters (1000 feet) but due to high voltage drop, they can only be powered up to 45 meter (150 feet) for video and RS-485 range. There are four basic types of PTZ cameras as follow: ZOOM: To maintain the image quality, it is not recommended to zoom the camera too far even if it can zoom in and out up to 30x by changing the lenz focal length.TILT: The latest model cameras can tilt up to 180 degrees up and down and capable of coverage to monitor a wide vertical area.PAN: A PTZ camera can move horizontally (left and right) up to 360 degrees circularly to cover a wide range of area.Let’s see how PTZ camera panning, tilting and zooming. Related Post: How to Install a CCTV Camera? CCTV Camera Installation with DVR.

Latest IP PTZ camera can Pan ( horizontally) up to “ 360°” and tilt up to “ 180°” ( vertically) and having the zoom ability of “ 112°” and the optical zoom range from 3x to 30x without reducing the image quality. These motors are used to move the camera “Left”, “Right”, “Up” and “Down”. A special type of motor known as “ stepper motor” is used in PTZ cameras for movement control which operated in periodic steps.

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