The depth of field is the front to back zone in a field of view field of view (FOV), which is in focus in the video scene. With a greater depth of field, more of the scene, near to far, is in focus. Increasing the f-stop number increases the depth of field of the lens. Therefore, the lens aperture should be set at the highest f-stop number usable with the available lighting. The better the lighting, the greater the depth of field possible. In other words, the depth of field is the area in front of the camera, which remains in focus. The larger the f-number the greater is the depth of field.Get Free Video Surveillance Systems Quotes!
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