Angle of view (horzntl, vertl, diagnl): 29 degree - 6.50 degree, 19.30 degree - 4.35 degree, 34 - 8.15 degreeLens construction (elements/groups): 19/14 No. of diaphragm blades: 8 Minimum aperture: 32-45 Closest focusing distance (m): 1.2 Maximum magnification (x): 0.21 (at 300mm) Distance information: Provided Image stabilizer: 4-stops AF actuator: Ring USM Dust/moisture resistance: YesFilter diameter (mm): 67 Magnification - Extension Tube EF12 II: 0.29-0.04 Magnification - Extension Tube EF25 II: 0.38-0.09 Lens hood: ET-73B Soft case: LP1424 Max. diameter x length (mm): 89 x 143 Weight (g): 1050