The Canon EF 24-70mm f/2.8L II USM is the ultimate professional standard zoom lens for Canon EF-mount DSLR photographers. Covering a versatile 24-70mm focal range with a constant f/2.8 maximum aperture, this L-series workhorse delivers consistent brightness and stunning subject separation from wide-angle environmental shots all the way to flattering portrait-length compression.
Built to perform in the real world, this Canon L-series lens combines a sophisticated optical formula — featuring one Super UD element, two UD elements, and three aspherical elements — with a weather-sealed, fluorine-coated construction and a lightning-fast ring-type USM autofocus system. Whether you are shooting weddings, editorial, travel, or studio work, the EF 24-70mm f/2.8L II USM is engineered to meet every professional demand with exceptional sharpness, colour fidelity, and reliability.
Key features
- Constant f/2.8 Aperture Across the Entire Zoom Range: Ensures consistent exposure and beautiful background blur (bokeh) whether shooting at 24mm or 70mm, making it ideal for low-light events and selective focus techniques.
- Superior Optical Clarity with UD and Aspherical Elements: One Super UD element and two UD elements eliminate chromatic aberrations and colour fringing, while three aspherical elements minimise distortion and spherical aberrations for edge-to-edge sharpness.
- Fast, Silent Ring-Type USM Autofocus: The Ultrasonic Motor with internal focusing and optimised algorithms delivers quick, precise, and near-silent AF — plus full-time manual focus override without switching modes.
- Professional Weather-Sealed Construction: Dust and moisture sealing across the lens barrel lets you shoot confidently in challenging outdoor conditions, complemented by a fluorine coating on the front and rear elements that repels fingerprints and simplifies cleaning.
- Stunning Bokeh with a 9-Blade Rounded Diaphragm: The rounded nine-blade diaphragm produces smooth, pleasing out-of-focus rendering, enhancing portraits, food photography, and any subject-isolation application.
- Full-Frame and APS-C Compatible with Zoom Lock: Covers full-frame Canon DSLRs natively and provides a 38.4-112mm equivalent range on APS-C bodies; an integrated zoom lock lever keeps the barrel compact and secure when not in use.
Specifications
| Mount | Canon EF |
|---|---|
| Format Compatibility | Full-Frame & APS-C (38.4-112mm equivalent on APS-C) |
| Focal Length | 24-70mm |
| Maximum Aperture | f/2.8 (constant) |
| Aperture Range | f/2.8 to f/22 |
| Optical Design | 1 Super UD element, 2 UD elements, 3 Aspherical elements |
| Autofocus System | Ring-Type Ultrasonic Motor (USM) with full-time manual override |
| Diaphragm Blades | 9 (rounded) |
| Coatings | Super Spectra coating + Fluorine coating on front & rear elements |
| Weather Sealing | Dust and moisture sealed construction |
Frequently asked questions
Is the Canon EF 24-70mm f/2.8L II USM compatible with APS-C Canon cameras?
Yes. While designed primarily for full-frame Canon EF-mount DSLRs, this lens is fully compatible with APS-C Canon bodies, where the crop factor provides an equivalent focal length range of approximately 38.4-112mm.
Does the Canon EF 24-70mm f/2.8L II USM have image stabilization?
No, this lens does not include optical image stabilization. However, its constant f/2.8 maximum aperture allows you to use faster shutter speeds and higher ISO settings to compensate for camera shake in low-light situations.
How does the optical design of the EF 24-70mm f/2.8L II USM reduce chromatic aberration?
The lens uses one Super Ultra-Low Dispersion (Super UD) element and two UD elements to significantly reduce colour fringing and chromatic aberrations, resulting in high colour accuracy and clarity. Three aspherical elements further minimise spherical aberrations and distortion for improved overall sharpness.
