What is the function of a ring light in video calls?

A ring light is primarily designed to provide even and flattering illumination for the subject being filmed or photographed, which significantly improves image quality. It helps to reduce shadows on the face and highlights key features, creating a more professional look during video calls. Proper lighting is crucial in video communications, as it can influence how the subject is perceived and the overall perception of professionalism.

The other options focus on aspects that a ring light does not address. For instance, enhancing sound quality is related to audio equipment rather than lighting. While ring lights can facilitate better video recording by improving lighting conditions, their principal function is to enhance the visual aspect rather than enable the recording itself. Special effects, while a creative use of lighting, are not the primary purpose of a ring light in typical video conferencing scenarios. Therefore, providing better image quality is the core function of a ring light in video calls.