Sharpness, or keenness, refers to the ability of an object, particularly a blade or cutting tool, to effectively cut through materials. This quality is determined by the angle of the edge, the material used, and the finishing process. A sharper edge requires less force to cut, making it more efficient for tasks like slicing or carving. In the context of photography, sharpness describes the clarity and detail of an image. It is influenced by factors such as lens quality, focus accuracy, and camera settings. High sharpness enhances the visual appeal of photographs, allowing viewers to appreciate fine details in subjects like landscapes or portraits.