Which technique does deep focus utilize in cinematography?

Deep focus is a cinematographic technique that allows multiple planes within a shot to remain in sharp focus simultaneously. This means that both foreground and background elements are clearly visible to the viewer. Such a technique enhances a scene by providing depth and context, often allowing for more complex visual storytelling. By keeping near and far elements in focus, the filmmaker can guide the viewer's attention across the frame, making it possible to notice interactions and details that might otherwise be overlooked if only one plane were focused. This approach can create a more immersive experience, as audiences are able to see more of the environment and understand the spatial relationships between characters and objects within the scene.