Product weight - 1050g / Filter diameter (mm) - 67 / Maximum diameter x length (mm) - 89 x 143 / Water/dust resistance - Yes /AF Actuator - Ring USM / Distance Information - Provided / Lens construction (elements/groups) - 19/14 / Minimum aperture - 32-45 / Magnification with extension tube EF12 II - 0.29-0.04 / Magnification with extension tube EF25 II - 0.38-0.09 / Angle of view - 29� - 6� 50', 19� 30' - 4� 35', 34� - 8� 15' / Maximum Magnification - 0.21 (at 300mm)
