Canon 24-70 EF f/2.8L USM
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Focal Length: 24-70mm
T-Stop: T2.8
Minimum Focus: 1.25ft
Front Diameter: 77mm
Weight: 2.1lbs
The Canon EF 24-70mm f/2.8 L USM Lens is a very high quality, Sharp Lens worthy of its L Series designation. Few zoom lenses reach this level of sharpness. The 24-70 L is sharp in the center at f/2.8 at all focal lengths and performs very well in the corners.
The wide open 24mm corners are most-affected by vignetting. Vignetting is very well controlled, but apparent in the corners at f/2.8 at 24mm on a full frame body. Vignetting improves as the focal length increases and the aperture is narrowed. At comparable apertures, the 24-70 L shows less vignetting than the also-excellent Canon EF 24-105mm f/4 L IS USM Lens - a typically-expected result when comparing a fast lens to a slower lens.
Image quality is not the only pro-grade feature of the Canon EF 24-70mm f/2.8 L USM Lens. Excellent AF is part of the equation. A Ring USM (Ultrasonic Motor) AF system delivers quiet,fast and accurate autofocus. The 24-70 L's f/2.8 aperture enables the enhanced-sensitivity of many Canon EOS DSLR body's AF points. As usual for a Ring USM AF system, FTM (Full-Time Manual) focusing is enabled. The 24-70 L does not extend with focus and the 77mm filter ring does not rotate.
Specifications | Canon EF 24-70mm f/2.8 L USM Lens | ![]() |
Focal Length Range | 24-70mm | |
Angle of View: Diagonal | 84° – 34° | |
Angle of View: Horizontal | 74° – 29° | |
Angle of View: Vertical | 53° – 19°30' | |
Lenses / Groups | 16/13 | |
Aperture | ||
Aperture Range - Wide / Long | f/2.8-22 | |
Number of Aperture Blades | 8 | |
Rounded Aperture? | ||
Weight | ||
Manufacturer Specification Weight | 33.5 oz | |
Size | ||
Manufacturer Spec Size (DxL) | 3.27 x 4.88” | |
Measured Size (DxL) | 3.37 x 5.13” | |
Max Length at Full Extension | 6.47” | |
Internal Zoom? / Extends with Zoom? | N / Y | |
Zoom Extension Length | 1.33” | |
Internal Focusing? / Extends with Focusing? | Y / N | |
Lens Hood Size (DxL) | 4.24 x 3.34” | |
Lens Length with Hood (Min / Max) | 7.56 / 7.56” | |
Size of Rings - Zoom / Focus | 0.93” / 0.91” | |
Filter Size | 77mm | |
Front Element (Filter Mount) Rotates | N | |
Features | ||
Tripod Ring Included? / Removable? | N | |
Zoom Ring Lock Switch? | N | |
Lens Hood Model / Included? | EW-83F / Y | |
Weather Sealed? / Filter Required? | Y / Y | |
Image Stabilization? / Stops? / Tripod Sensing? | N | |
Case Included? / Type? | Y / LP1219 | |
Focus | ||
AF Motor Type | Ring USM | |
Full Time Manual Focus | Y | |
Focus Limiter? / Focus Limiter Ranges | N | |
Distance Info Provided to Camera? | Y | |
Distance Scale? / Type | Y / Window | |
Extender Compatible? | N | |
Close Focus | ||
Specified Min Focus Distance | 15” |