EF mount; standard zoom lens; Comes with Lens Cap E77U, Rear Lens Cap, Lens Hood EW-83F, Soft Lens Case 1219.
Ultra-low Dispersion glass with Fluorite elements; inner focusing ring; full-time manual focus; aspherical lens
24-70mm focal length
f/2.8 constant maximum aperture
UltraSonic Motor (USM) AF actuator
Technical Details
Angle of view (Horizontal, Vertical, Diagonal): 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 by length: 83.2 by 123.5 inches
Weight: 2.1 pounds
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
Hard case: Not available
Soft case: LP1219
Warranty: 1 year