INCREDIBLY SHARP: One aspherical element and three ED (Extra-low Dispersion) glass elements in a precision optical design suppress aberration throughout the lens’s zoom range BEAUTIFULLY SMOOTH BACKGROUNDS: Circular 7-blade aperture for beautiful bokeh defocus effects ALWAYS RELIABLE: A dust and moisture resistant design provides the reliability needed for outdoor use in challenging conditions. FAST AND PRECISE: The XD Linear Motor fully utilises the speed potential of the camera body, focusing on and tracking even fast-moving subjects with outstanding speed and precision CONVENIENT ERGONOMICS: A focus mode switch that allows instant switching between auto and manual focus modes along with a customisable focus hold button for efficient and versatile shooting Angle of View (APS-C): 22°-4°40'