Camera Operation & Control

What does PTZ stand for in the context of camera control?

• APixel Timing Zoom
• BPan-Tilt-Zoom✓
• CPermanent Technical Zone
• DPower Tracking Zone

Answer: PTZ stands for Pan-Tilt-Zoom, allowing cameras to move and magnify their view.

What is a preset in PTZ camera control?

• AA default brightness setting
• BA saved camera position, zoom, and focus that can be recalled instantly✓
• CA recording format
• DA colour filter

Answer: A preset stores a camera's pan, tilt, and zoom position for instant recall to frequently monitored areas.

How should an operator set up effective presets for a PTZ camera?

• ARandomly place them around the scene
• BSave key areas of interest (entrances, blind spots) and verify they show clear, usable views✓
• CSet them all to maximum zoom
• DChange them every hour

Answer: Effective presets cover strategic areas (entry points, high-value zones) and should show clear, useful views for monitoring.

What is a tour function in PTZ camera control?

• ARemote monitoring from outside the building
• BAn automated sequence moving between saved presets on a timer✓
• CRecording external locations only
• DA manual setting for lighting

Answer: A tour automatically cycles through preset positions at defined intervals, useful for continuous monitoring of multiple areas.

When manually tracking a person moving through the scene, what should an operator prioritise?

• AFollowing them as closely as possible with maximum zoom
• BMaintaining view of the person while keeping context of surrounding area✓
• CUsing slow camera movements
• DSwitching presets frequently

Answer: Good tracking maintains both the subject and surrounding context in view to understand behaviour and threats.

What is the primary concern when zooming in excessively during CCTV monitoring?

• AIt increases image brightness too much
• BIt narrows the field of view, losing sight of the broader context and surrounding threats✓
• CIt wears out the camera faster
• DIt requires more power

Answer: Excessive zoom reduces field of view, risking missing important activity in peripheral areas.

What is the 'zoom creep' problem in CCTV monitoring?

• ACameras gradually fail over time
• BOperators become too focused on one zoomed-in area and lose awareness of the broader scene✓
• CZoom lenses gradually lose focus
• DRecording frame rates decrease

Answer: 'Zoom creep' describes the tendency to zoom in excessively, losing situational awareness of the wider area.

How should an operator monitor multiple camera feeds simultaneously?

• AFocus on one camera only
• BSystematically scan all feeds on a schedule, paying attention to motion and alerts✓
• CWatch all screens equally at all times
• DIgnore cameras without recent activity

Answer: Effective multi-camera monitoring involves systematic scanning with attention to alerts and movement patterns.

What should an operator do if a camera malfunctions during a shift?

• AIgnore it and continue monitoring other cameras
• BImmediately report it to supervisor and follow procedures to address the gap in coverage✓
• CAttempt repairs yourself
• DContinue working and report it at the end of shift

Answer: A malfunctioning camera creates a security gap and must be reported immediately so management can respond.

What is the purpose of 'white balancing' a camera?

• AMaking the image brighter
• BAdjusting colour accuracy to reflect true colours under different lighting conditions✓
• CReducing image compression
• DIncreasing resolution

Answer: White balance adjusts colour reproduction so that neutral colours appear neutral under different light sources.

What does 'focus' control in cameras determine?

• AImage brightness
• BThe sharpness and clarity of objects at specific distances✓
• CRecording quality
• DCamera movement speed

Answer: Focus adjustment ensures objects at desired distances appear sharp and clear in the image.

When should autofocus be used in CCTV cameras?

• AAlways - it's always best
• BOnly in outdoor scenes
• CWhen scenes are relatively static; manual focus may be better for specific depth zones✓
• DNever - manual focus is always preferable

Answer: Autofocus is useful for dynamic scenes; manual focus is better when monitoring specific depth zones.