Product weight - 760g / Filter diameter (mm) - 67 / Maximum diameter x length (mm) - 76 x 172 / AF actuator - Ring USM / Lens construction (elements/groups) - 20/15 / Minimum aperture - 32 / Angle of view - 29� - 10�, 19� 30' - 7�, 34� - 12� (horizontal, vertical, diagonal) / Magnification - 0.21 (at 200mm) / Magnification with extension tube EF12 II - 0.23-0.06 / Magnification with extension tube EF25 II - 0.42-0.14 / Dust/water resistance - Yes