Which technique is used to maximize depth of field when infinity is composed in the background?

The technique that maximizes depth of field when infinity is composed in the background is hyperfocal focusing. This method involves focusing the camera at a specific distance (the hyperfocal distance), which allows everything from half of that distance to infinity to be in acceptable focus. When photographing landscapes or scenes where distant elements play a crucial role, focusing at the hyperfocal distance ensures that a wide range of distance is sharp.

By using hyperfocal focusing, photographers effectively maximize the area of sharpness in their compositions, providing a greater sense of depth and allowing both the foreground and distant background to remain clear and detailed. This is particularly beneficial in landscape photography where having everything from the foreground to the horizon in focus helps create a more immersive and visually appealing image.