Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Canon Digital DSLR Camera : Camera Lenses : Electronics
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Unprecedented Image Quality: With Sony 70-200mm F2.8 GM OSS II, the picture quality is not compromised throughout full the zoom range. Two aspherical elements, one an XA (extreme aspherical) type, ensure high resolution throughout the image area. Two ED (extra-low dispersion) glass elements, two Super ED glass elements, and one ED aspherical element minimise chromatic aberration.
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The EF 70-200mm f/4L IS USM is a lightweight, compact L Series telephoto zoom lens with Image Stabilizer. The optical Image Stabilization in the new EF 70-200mm f/4L IS USM lens provides up to an incredible four stops of shake correction-a first for Canon IS lenses. The use of fluorite UD lens elements provides excellent optical performance in terms of resolution and contrast.
Sigma 70-200mm f/2.8 EX DG APO Os HSM Lens for Canon
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Sigma announces pricing and availability of its 70-200mm F2.8 DG OS HSM Sport lens: Digital Photography Review