Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions
Micro Ultrasonic Motor (USM) is employed to deliver fast, precise, and quiet autofocus performance and works in conjunction with an electromagnetic diaphragm to complement photographing at fast continuous speeds
Seven-blade diaphragm contributes to a pleasing bokeh quality
Refract or bend light rays, so that they converge or come together ">