![]() ![]() But honestly, I had to look for it to find it. The chromatic aberration I found was minimal and easily corrected with one single click on the “Remove Chromatic Aberration” box in Lightroom’s Develop module*. I also checked my Sigma 18-35mm f/1.8 photos closely in Lightroom for chromatic aberration. Sigma 18-35mm f/1.8 – Great Salt Lake storm sample photo Sigma 18-35mm f/1.8 – Utah State Capitol sample photo Photographers who need straight lines and don’t want to make lens corrections in Lightroom or Photoshop will be very pleased with this lens. There’s no visible distortion in my Utah State Capitol photos and no obvious curvature on the horizon in landscape images, even when the horizon was near the edge of the frame. It’s super sharp across the whole zoom range, including the edges. ![]() Optically, the lens as absolutely as good as DxOMark says. In the time I had the Sigma 18-35mm f/1.8 for review I was able to shoot a bunch of outdoor and landscape stuff, some people photos, and some architectural photos. You have to get out in the field and actually take pictures to really determine how good a camera or lens is. Lab tests are useful but they don’t tell the whole story. Since DxOMark scores the 16-35mm well below the 24-70mm f/2.8L II, it’s clear that the Sigma 18-35mm f/1.8 is the best possible glass you can use with your APS-C DSLR. However, since the 24-70mm has a very different zoom range, it’s probably better to compare to the Canon 16-35mm f/2.8L II zoom. Canon’s new 24-70mm is one of the best zoom lenses available so that’s great news for photographers who are interested in the new Sigma. However, when both lenses were mounted on the same crop sensor camera, the Sigma performed far better than the bigger, slower and much more expensive 24-70mm f/2.8L II. Camera and lens lab testing site DxOMark said the Sigma 18-35mm f/1.8 is the best APS-C lens they’ve ever tested, scoring it just a hair below the Canon EF 24-70mm f/2.8L II when the 24-70mm is mounted on a full-frame camera. Sigma 18-35mm f/1.8 next to the Canon EF-S 17-55mm f/2.8 IS zoom lensīuild quality is important but it’s performance that really matters, right? And the Sigma 18-35mm f/1.8’s performance does not disappoint. It balances just fine on the Canon EOS Rebel T4i / 650D and the EOS 7D. On the other hand, I wouldn’t say it’s too big, either. I would not describe it as small, light or inconspicuous. ![]() If you’re looking for something small and light, this may not be the lens you want. The Sigma 18-35mm is also heavier than the Canon 17-55mm f/2.8. Note that even though the Sigma has half the zoom range of the Canon, it’s actually longer and has almost the same diameter. For reference, I took a picture of the Sigma 18-35mm f/1.8 next to my Canon EF-S 17-55mm f/2.8 IS zoom (below). The lens build gave me a feeling of confidence – it definitely feels like serious bit of camera gear. You can also tell there’s a lot of heavy glass inside. It’s been a while since I used a Sigma lens but this one feels like it’s built better than Sigma lenses I’ve used in the past – including top shelf glass like the 70-200mm f/2.8 HSM OS zoom. It has to be big to let all that light in. It’s a big lens for such a short zoom range, although that’s to be expected with such a large aperture. The first two things you notice with the Sigma 18-35mm f/1.8 are the size and the weight. The 18-35mm f/1.8 is a member of the Art line and there’s a shiny little “A” on the lens barrel to indicate that. The Sigma 18-35mm f/1.8 DC HSM Art lens is part of Sigma’s new Global Vision program, which includes three lens lines: Art, Sports and Contemporary. Available for Sigma, Canon and Nikon APS-C sensor DSLRs.Lens Construction: 17 elements in 12 groups.Aperture construction: 9 rounded blades.Minimum focus distance: 8cm / 11 inches.35mm focal length equivalent: 27-52.5mm.Sigma 18-35mm f/1.8 DC HSM Zoom Lens Key Features & Specs: Short zoom range – not wide enough or long enough.Sigma 18-35mm f/1.8 DC HSM Zoom Lens Cons Affordable price compared to alternatives (there really aren’t any comparable lenses).Sigma 18-35mm f/1.8 DC HSM Zoom Lens Pros ![]() Photographers were very excited when the Sigma 18-35mm f/1.8 DC HSM Art lens was announced because the large f/1.8 aperture opens up new opportunities for APS-C sensor DSLR owners who shoot in low light, and for photographers who want more depth-of-field control. We were lucky enough to get one soon after the announcement and I’ve been using it for a little over a week with a Canon EOS Rebel T4i / 650D and an EOS 7D. As you’d expect from a zoom with an f/1.8 maximum aperture, it’s a pretty substantial chunk of metal and glass. It’s designed for APS-C sensor cameras, which means the effective focal length is actually about 27-50mm. A few weeks ago, Sigma announced an 18-35mm f/1.8 zoom – the world’s fastest zoom lens for digital SLRs. ![]()
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