What is the difference and connection between the optical zoom and the digital zoom of the camera in the security monitoring?
Optical zoom is that we often say that the mechanical zoom (manual and automatic), manual is the lens we usually zoom, auto zoom is common is that we use the ball machine and PTZ to pull closer to control zoom.
First of all they can achieve the image of the amplification, is often said to push or pull away.
Digital zoom, the software is a way to achieve the realization of electronic amplification, and more for high-definition network camera, through the camera's capture screen, the screen to enlarge the local.
