Spanning a popular and versatile range of focal lengths, the EF 24-70mm f/2.8L II USM is a Canon L-series zoom commonly thought of as the workhorse of lenses. Ranging from wide-angle to portrait length, this lens is also distinguished by its constant f/2.8 maximum aperture to benefit working in difficult lighting conditions and to afford greater control over depth of field. The lens is also characterized by its sophisticated optical design, which includes one Super UD element and two UD elements, which reduce color fringing and chromatic aberrations in order to realize a high degree of color accuracy and clarity. Three aspherical elements are also featured, and minimize distortion and spherical aberrations for improved sharpness. Additionally, a Super Spectra coating has been applied to individual elements to control flare and ghosting for high contrast and neutral color fidelity.

Balancing the refined optics, this 24-70mm f/2.8 also sports a ring-type USM and internal focusing mechanism to enable quick, quiet, and accurate autofocus performance, as well as full-time manual focus override. Additionally, this lens is weather-sealed and has a protective fluorine coating on the exposed elements for use in trying environmental conditions.

EF-Mount Lens/Full-Frame Format    Aperture Range: f/2.8 to f/22    One Super UD Element, Two UD Elements    Three Aspherical Elements    Super Spectra and Fluorine Coatings    Ring-Type Ultrasonic Motor AF System    Weather-Sealed Construction    Rounded 9-Blade Diaphragm

Standard zoom is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 38.4-112mm equivalent focal length range.

Bright constant f/2.8 maximum aperture affords consistent illumination throughout the zoom range and also affords greater control over depth of field for working with selective focus techniques.

One Super Ultra-Low Dispersion element and two ultra-low dispersion glass elements noticeably reduce color fringing and chromatic aberrations for high clarity and color fidelity.

Three aspherical elements minimize spherical aberrations and distortions for improved sharpness and accurate rendering.

Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions.

A ring-type Ultrasonic Motor (USM), along with an internal focusing design, optimized focusing algorithms, and a high-speed CPU, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.

Rounded nine-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.

Protective fluorine coating has been applied to the front and rear element to resist fingerprints and smudges and to make cleaning these elements significantly easier.

As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.

Zoom lock lever secures the zoom position at the wide end to maintain a compact form factor and protect the lens when not in use.

Related Questions and Answers

Q: 1. Any one own this lens and or the Sigma 24-70 f2.8 OS DG HSM, and which do you prefer?

A: I have the canon and it has become my favorite walk about lens. I absolutely love it!

Q: 2. Is this lens compatible with a Rebel T5i?

A: Yes it is.

Q: 3. What are micro adjustments on the 24-70 lens?

A: There are no micro adjustments on the lens itself. You can make micro adjustments on the camera for your particular copy of this lens, but that has not been necessary for me.

Q: 4. Hi, Can this lens be mounted to a Canon EOS Rebel T5i?Thanks,Sam

A: Yes it can be. The T5i is compatible with any Canon EOS autofocus lenses and this Canon 24-70mm f2.8 lens is compatible with any Canon DSLR.

Q: 5. Will a square filter of 84 x 120 mm fit at the front of this lens?

A: For square filters, you will need a square filter holder depending on the brand of filter you're using.

Q: 6. extended warranty??

A: Yes! it exists! It can be found by clicking the see details link under the product information.

Q: 7. Is it possible to use an adapter for this lens to a Sony A7? If so, which adapter would you recommend?

A: Yes I'm sure you can. I have no experience in doing this though. I have heard that depending on the adapter the autofocus can be good to poor. Maybe a Sony or Zeiss lens made for the A7 would be a better choice?

Q: 8. Considering this lens for the BM Ursa Mini 4.6. Good fit?

A: as long as its BM Usra with EF mount. Would work great

Q: 9. does lens come with case?

A: No

Q: 10. Can the autofocus motor of this lens be heard on a hot shoe mounted mic such as a Rode Videomic Pro Plus?

A: I can hardly hear this lens during auto focus, but one has to consider the amount of sensitivity and gain your Rode Videomic has, and /or it set to. Can you test the mic before a commited purchase? Considering all, I would still doubt any mic is going to be adversly affected by the auto focus of the lens.