In photography, an image is a two-dimensional representation of a real object, created by focusing rays of light through a lens onto a photosensitive surface, such as film or a digital sensor. Images capture the appearance, detail, and sometimes the mood of the subject, preserving it for viewing or reproduction.
Understanding how images are formed is fundamental for photographers, as it influences composition, focus, and exposure. Whether working with film or digital cameras, controlling light, lens settings, and perspective helps produce sharp, visually compelling images that accurately represent the subject.