Tag Archives: Varifocal Surveillence Security Video Camera Systems

Varifocal Surveillence Security Video Camera Systems

Varifocal: A camera with a varifocal lens allows the operator to zoom in or out while still maintaining focus on the image. A varifocal lens is a camera lens with variable focal length in which focus changes as focal length (and magnification) changes, as compared to parfocal (“true”) zoom lens, which remains in focus as… Read More »

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