In the world of video production, a video switch, also known as a video mixer or switcher, is a piece of equipment used to switch between multiple video sources. This allows for a more professional-looking production, as the video can seamlessly switch between different camera angles or other video sources.

A vision mixer is a device used in video production to combine multiple video sources into a single output. Also known as a video switcher or a production switcher, a vision mixer enables the operator to select and switch between various sources such as cameras, video players, and computer graphics.