Aperture (optics and photography) Aperture An aperture is an opening that admits light in optical systems. This article explains how apertures are measured and adjusted, their effect on exposure and depth of field, and rela…
Camera lens: design, types, history, and practical uses Camera lens Overview of camera lenses: how they form images, main components and optical principles, common types and uses, historical development, accessories, and practical advice for photog…
