Canon EF 24-70 2.8L USM EOS mount 35mm SLR Zoom lens

The EF 24-70mm f/2.8L USM is a high-performance lens. It has been developed as a successor to the EF 28-70mm f/2.8L USM, but with a wider zoom range to meet the needs of photographers using certain digital cameras.

The EF 28-70mm f/2.8L USM has proven very popular with professional and advanced amateur photographers since it was introduced in 1995. However, the increasing use of digital cameras, most having sensors smaller than a 35mm film frame, has increased the demand for a high-performance standard zoom lens with a wider wide-angle setting. The EF 24-70mm f/2.8L USM lens meets this need. The optical design is based on the previous lens, but incorporates new design features that allow the broader focal length range while maintaining the superb image quality. At the same time, the minimum focusing distance has been reduced from 0.5 meters to 0.38 meters.
Improved water and dust resistance ensure that it will become the leading standard zoom lens in the EOS system.

• High-speed AF
• Optimized lens coatings
• Highly resistant to dust and water droplets
• Min. focusing distance of 0.38m at all focal lengths
• Front of lens does not rotate during focusing
• Manual focus is possible in AF mode
• Only lead-free glass is used

Angle of view (horzntl, vertl, diagnl)84 - 34 degrees, 53 degrees - 19degrees 30\', 74 - 29 degrees 

Lens construction (elements/groups)16/13
No. of diaphragm blades8
Minimum aperture22
Closest focusing distance (m)0.38
Maximum magnification (x)0.29 (at 70mm)
AF actuatorUSM (1)
Filter diameter (mm)77
Max. diameter x length (mm)83.2 x 123.5
Weight (g)950
Magnification - Extension Tube EF12 II0.63 - 0.18
Magnification - Extension Tube EF25 II0.75 - 0.40 (1)
Lens hoodEW-83F
Soft caseLP1219
G.F.Holder III (hood III*)(0)
G.F.Holder IV (hood IV*)(0)
AF actuator (1) Mechanical full-time manual focusing built-in
Magnification - Extension Tube EF25 II(1) Only compatible at tele
*Maximum number of Hood III/IV attachable. In case of zoom lenses, the maximum number applies to the short focal length