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Uniview Varifocal Cameras

Motorised lens or varifocal (VF) lens cameras have optical zoom capability. This means they can "zoom in" optically with inbuilt motors that drive the camera's lens from a wide to narrow field of view allowing distant objects to come into clear focus. Optical zoom maintains video quality throughout the entire focal adjustment. This is most useful for situations where you are not sure what the optimal focal length is for a particular camera location, or for Live view/real-time use, where the user needs to capture details that would ordinarily be hard to see without getting closer to the subject. It's important to note that only digital zoom can be used in playback for all recorded footage. So motorised VF lens cameras are more ideal for real time use or set and forget applications.