What does a camera's zoom capability affect in surveillance?

The zoom capability of a camera primarily affects its ability to capture images at various distances. Different zoom levels allow a camera to focus on objects that are far away or to capture wider scenes up close. When a camera can zoom, it can provide varying levels of detail depending on the distance of the subject from the camera. This means that operators can closely monitor specific areas or objects without having to reposition the camera, enhancing the flexibility and effectiveness of surveillance.

The other choices do not directly relate to the function of zooming. The wider field of view refers more to the wide-angle capability of a lens rather than its zoom. Increased frame rate is primarily determined by the camera's specifications and technology, not its zoom capability. Integration with alarm systems involves how the camera connects with other security measures, which is unrelated to zoom functionality. Hence, the option that accurately reflects what a camera's zoom capability affects is indeed the ability to capture images at various distances.