Angle of view (H, V, D):            84 to 34 degrees, 53 to 19 degrees, 74 to 29 degrees

Lens construction:                   16 elements in 13 groups

Number of diaphragm blades: 8

Minimum aperture:                  22

Closest focusing distance:       1.25 feet

Maximum magnification:         0.29x (at 70mm)

AF actuator:                             USM

Filter diameter:                        77 millimeters

Maximum diameter:                83.2 mm

Maximum length:                    123.5 mm

Maximum diameter by length: 83.2 by 123.5 inches

Weight:                                    950 g

Magnification with Extension Tube EF 12 II: 0.63 to 0.18

Magnification with Extension Tube EF 25 II: 1.25 to 0.40

Lens hood:                               EW-83F