Straight lines will have a slightly outward curve it's pretty easy to correct using software like Lightroom.Īt the 50mm position the center-weighted performance is still excellent the lens approaches 2,500 lines at f/4. There is some barrel distortion here, about 2.9 percent, which will be noticeable in photos.
That's better than the 1,800 lines per picture height we use call an image sharp. Stopping down to f/5.6 bumped the overall score to 2,756 lines, and edges also improved to 2,550 lines. Edges are really crisp here, showing 2,300 lines. At 24mm f/4 that combination resolved 2,708 lines per picture height on our center-weighted sharpness test. I used Imatest (Opens in a new window) to check the performance of the lens when paired with the full-frame Canon EOS 6D. (Opens in a new window) Read Our Sigma 24-70mm F2.8 IF EX DG HSM Review The lens is compatible with Sigma's USB Dock, a unique accessory that allows you to customize aspects of lens behavior and adjust focus to perfectly match your camera body. If you're in want of a zoom lens that focuses a bit closer, the Canon 24-70mm f/4L IS USM can get as close as 7.9 inches (1:1.4 magnification) at 70mm. The lens can focus as close as 17.7 inches its maximum magnification is 1:4.6, which doesn't put it in the macro category.
There's a smaller manual focus ring directly behind it both have textured grips. The zoom ring sits toward the front of the lens, right behind the front element, and has marked positions for the 24mm, 35mm, 50mm, 70mm, 80mm, and 105mm positions. There's a toggle switch on the barrel to disable stabilization when it's not desired-it's generally advisable to disable it when shooting on a stable tripod. Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. ( See how we test everything we review (Opens in a new window).) Sigma includes a reversible hood, and an optical stabilization system is built into versions of the lens that are marketed for Canon, Nikon, and Sigma cameras Sony shooters can rely on the in-body stabilization that Alpha SLRs provide. There's a lot of glass in the lens, and it weighs in at just a hair under 2 pounds with a big front element that requires the use of 82mm filters. The lens measures just 4.3 by 3.5 inches (HD) when set to the 24mm position, but it does extend when zoomed. But given its price, performance, and zoom range, the Sigma 24-105mm is well deserving of our Editors' Choice award. It's not perfect-there's some distortion and the edges, while still quite crisp, lag behind the more central parts of the frame in terms of sharpness. The lens doesn't offer the f/2.8 aperture of pro-level zooms, but if you can live with an f/4 zoom it's a great performer and its price tag is reasonable. Sigma sells it in Canon, Nikon, Sigma, and Sony mounts, and the lens is eligible for the company's mount conversion service if you choose to change systems.
The Sigma 24-105mm F4 DG OS HSM ($899) is a standard zoom lens for full-frame cameras.
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