Certified Professional Photographer Practice Exam 2025 – All-in-One Guide to Achieve Your CPP Success!

Question: 1 / 465

Which type of remote triggering technology does not require a direct line of sight?

Infrared

Photosensitive

Radio

The correct answer is radio technology because it operates through radio waves, which can penetrate various obstacles and do not rely on a direct line of sight between the transmitter and the receiver. This capability allows for flexibility in positioning the camera and the triggering device, making it suitable for a variety of shooting conditions where obstructions might be present, such as in large spaces or outdoors.

In contrast, infrared technology relies on light signals that require a direct line of sight to function effectively. If anything obstructs the path between the remote and the camera, the trigger will not work. Photosensitive triggering also requires a light source to be detected directly by the sensor, which limits its effectiveness in situations where the light source is obstructed. Thus, when considering various remote triggering technologies, radio technology stands out for its ability to work without the need for a clear visual line between devices.

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