Which statement about CCTV lens control in automated systems is true?

Which statement about CCTV lens control in automated systems is true?

• A. Servomotors are used to adjust lens exposure and focus and accept electronic control signals.
• B. Lens adjustments are always manual.
• C. Electronic control is not used in CCTV lens adjustment.
• D. Only zoom and pan are electronically controlled.

Answer: (A)

In automated CCTV systems, lens control is typically motorized and driven by servomotors that move focus, zoom, and iris (aperture). These motors respond to electronic control signals from a camera controller or centralized automation system, allowing remote and automatic adjustments as the scene or lighting changes. This is why exposure is managed through the iris and focus/zoom through motorized actuators, all coordinated by digital or serial control protocols. The idea that adjustments are always manual isn’t accurate here, since the whole point of automation is to enable remote, programmed, or sensor-driven changes. It’s also not true that electronic control isn’t used, because these lenses rely on electronic commands to operate. And it’s not limited to zoom and pan: pan and tilt are about camera movement, not lens internals; motorized lenses typically control zoom, focus, and iris, with those electronic controls enabling proper exposure and sharp focus.

In automated CCTV systems, lens control is typically motorized and driven by servomotors that move focus, zoom, and iris (aperture). These motors respond to electronic control signals from a camera controller or centralized automation system, allowing remote and automatic adjustments as the scene or lighting changes. This is why exposure is managed through the iris and focus/zoom through motorized actuators, all coordinated by digital or serial control protocols. The idea that adjustments are always manual isn’t accurate here, since the whole point of automation is to enable remote, programmed, or sensor-driven changes. It’s also not true that electronic control isn’t used, because these lenses rely on electronic commands to operate. And it’s not limited to zoom and pan: pan and tilt are about camera movement, not lens internals; motorized lenses typically control zoom, focus, and iris, with those electronic controls enabling proper exposure and sharp focus.