What might be an example of using an overlay in a video production?

Using an overlay in video production typically involves superimposing visual information over the main video content. This technique is commonly employed to enhance the narrative or provide additional context to viewers without interrupting the flow of the primary footage.

Displaying a weather forecast graphically is a prime example of an overlay. In this case, the information—such as graphics representing weather conditions or temperatures—is layered on top of the main video content, allowing viewers to receive pertinent information while still watching the primary visual narrative. This method is effective in news broadcasting and other formats where multiple types of information are presented simultaneously.

In contrast, adjusting brightness levels is a post-production visual effect rather than an overlay; changing the camera lens pertains to physical equipment rather than on-screen graphics; and editing a sound clip involves audio production processes that do not typically relate to visual overlays at all. These alternatives do not enhance the video with additional graphic information, highlighting why the weather forecast example stands out as the correct representation of an overlay in video production.