Advanced image quality - ten elements in six groups, including two aspherical elements for edge-to-edge sharpness Angle of view: 63.4°.At just 180g, the XF23mmF2 R WR is compact, lightweight, and stylish for great operability Weather and dust resistant, capable of operating at temperatures as low as -10 Degree. Maximum magnification: 0.13x Fast and silent autofocus: when combined with the phase detection AF system of FUJIFILM X-Pro2 or X-T2, the lens can focus in an astonishing 005 seconds