👉 Prefocusing, also known as focusing, is a process in which an object or system is observed from a distance and then magnified to give an image. The goal of prefocusing is to isolate a specific part of an object or system without disturbing its general appearance. In other words, the term "prefocusing" refers to the act of observing something from a distance, magnifying it, and then reconstructing the original scene by combining the new magnified image with the existing image. This process