Sigma 17-70mm f/2.8-4.5 DC HSM Macro Lens for Nikon DSLR Review

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(More customer reviews)This is the first non-Canon lens I've purchased and the Sigma 17-70/2.8-4.5 DC surprised the hell me with its fine performance. Zoom range, speed, resolution, low Chromatic Abberation, fast/sure autofocus speed and solid build quality make this lens stand head and shoulders above the typical cheap Canon kit lens such as the terrible Canon EF 18-55/4.5-5.6. Plus the Sigma has 1:2.3 macro capabilities with very sharp results...AMAZING! I've read more and more reviews all over the Internet on this Sigma lens that praise its qualities. This lens will compete with Canon lenses costing two and 3 times as much (EF 17-40, EF 18-50/2.8, EF 16-35/2.8). The Sigma 17-70 is constructed with one SLD low-dispersion glass element which is responsible for its excellent lack of Chromatic Aberation. At this price I never expected that kind of quality. Highly recommended!

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Sigma's 17-70mm DC macro lens is an ideal large-aperture standard zoom lens for Nikon digital SLR cameras with APS-C size image sensors, making it suitable for a wide variety of subjects. The lens offers a minimum focusing distance of 7.9 inches throughout the entire zoom range, along with a maximum magnification of 1:2.3 for close-up macro photography. The new lens design and multilayer lens coating, meanwhile, reduce flare and ghosting--a common problem with many digital cameras. Add in a Special Low Dispersion (SLD) glass element and two aspherical lens elements and you have a lens that can correct all types of aberrations while producing a high level of optical performance at every interval.
The lens also offers a large aperture of F2.8 at the 17mm wide-angle setting, yet is notably compact, with an overall length of 3.2 inches and a diameter of 3.1 inches. Plus, it performs superbly even in relatively low-light conditions, such as indoors or at dusk. Users will also appreciate the inner focusing system, which provides a fast autofocus speed while preventing the front of the lens from rotating, making it particularly suitable for use with circular polarizing filters and petal-shaped lens hoods. Also equipped with a zoom lock switch that eliminates "zoom creep" during transport, the lens weighs 16 ounces and carries a one-year warranty.

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