Focus range refers to the distance span within which a camera or lens can accurately achieve focus on a selected subject. This range defines the near and far limits where subjects will appear sharp and well-defined in an image.
Understanding focus range is important for photographers working in portrait, macro, or landscape photography, as it affects composition, depth of field, and image clarity. Lenses with extended focus ranges offer more flexibility for capturing subjects at varying distances, while precise control over focus range helps ensure consistently sharp and professional-quality photographs.