![]() 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
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