![]() ![]() ![]() To measure the image quality at a typical landscape distance, I photographed Brighton Pier with the Sigma 10-18mm, starting at 10mm for an ultra-wide 15mm equivalent field of view, and with the aperture wide-open.Īgain I used my Sony A6400 for the tests in this review, with Distortion Compensation set to Auto, as this is how the lens is designed to be used, and as always I’ve angled the view so that details run into the corners. In terms of dust and moisture, there’s a rubber grommet at the mount-end, but I believe that’s where the sealing ends, so be warned under wet conditions. It stays in place securely without the usual bayonet twist and lock, but I’m not sure it’s that much of a time-saver. Sigma supplies a petal lens hood that pushes onto the end of the barrel. It’s a smooth mechanism with quite a short throw which also doesn’t rotate the 67mm filter thread. As you adjust the zoom wider to the 10mm focal length, the whole end of the barrel extends by about a centimeter. Towards the end of the barrel is the zoom ring, with the lens physically shortest when set to the 18mm focal length. Closest to the lens mount is a smooth and free-spinning manual focusing ring, although with the ridges flush to the barrel on either side, I didn’t find it the most comfortable in use. The design and controls are very simple with just two rings and no switches. The Tamron isn’t exactly large or heavy, but the Sigma is noticeably more compact. This makes it roughly the same diameter as Tamron’s 11-20 2.8, but 22mm shorter and around two thirds the weight. The 10-18 is a member of Sigma’s more affordable Contemporary series, measures 72圆4mm and weighs 255g. Meanwhile the bright f2.8 aperture allows you to keep sensitivities low and achieve mild background blur if you can get close to your subject. ![]() The 1.5x field reduction of most APSC sensors means the coverage is equivalent to 15-27mm in full-frame terms, delivering a classic ultra-wide to standard wide range. Alternatively get yourself a copy of my In Camera book, an official Cameralabs T-shirt or mug, or treat me to a coffee! Thanks! Buy it now! Check prices on the Sigma 10-18mm f2.8 DC DN at B&H, Adorama, WEX UK or. The Sigma doesn’t quite match its sharpness, but undercuts it on cost, length and weight. The closest rival for both systems though is Tamron’s 11-20 f2.8. Fujifilm owners should compare it against the XF 10-24 f4 or 8 f3.5, while Sony shooters should weigh-up the 10-20 f4 PZ, or the 11 f1.8. The lack of optical stabilisation also means video shooters will prefer to use it with a body with IBIS or digital compensation, or mount it on a tripod or gimbal. The image is sharp in the middle but there’s some softening as you approach the far corners, especially at the wider-end of the focal range. On the downside, don’t expect miracles with the aperture wide-open. ![]() It’s compact, light and affordable, and capable of dramatic results ideal not just for landscapes and interiors, but also for presenting pieces to camera. The Sigma 18-35mm 1.8 DC HSM is a new benchmark in photographic history and a must have for every camera bag.Summary The Sigma 10-18mm f2.8 DC DN is another very welcome lens for APSC systems, and I’m delighted in Sigma’s World that now means not just Sony and Leica L mounts, but also Fujifilm X-mount from day-one. A 9 blade rounded diaphragm also creates beautiful background blur. Its new Global Vision design works with its compatibility with the Sigma USB dock for further customization. The use of Thermally Composite Material (TSC) reduces size and weight but increases the lens durability. The 18-35mm is ideal for landscapes, portraits, still life, snap shots, casual, and close-ups and the Hyper Sonic Motor (HSM) ensures smooth, fast and accurate autofocusing. Internal focusing and zooming allows for more usability and functionality. Tapping into Sigma’s long history of lens innovations, the 18-35mm 1.8 DC HSM incorporates a wide glass molded aspherical lens with Special Low Dispersion (SLD) glass to compensate for aberrations and curvature at the widest angle. Designed specifically for APS-C sized sensors, the Sigma 18-35mm f1.8 translates to 27mm-52.5mm on 35mm camera. The Sigma 18-35mm f1.8 DC HSM is the first wide-angle to standard zoom lens to achieve a large aperture of f1.8. ![]()
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