The concept of "focus beyond optical infinity" refers to adjusting the focus of a lens or camera to capture objects that are very far away. Some synonyms for this phrase include "infinite focus," "far focus," or "distant focus." These terms all describe the same idea of adjusting the focal length of a lens to capture images that are located beyond the point of optical infinity. Achieving this type of focus is critical in certain situations, such as when taking photos of astronomical objects, aerial landscapes, or capturing images of wildlife from a distance. With the right equipment, photographers and videographers can capture stunning images of objects that are normally too far away to see.