Escaping Everyday

17-35mm f/2.8-4 EX DG Aspherical HSM Minimum focusing distance of 27cm / 10.6in. at all focal lengths It has a minimum focusing distance of 27cm / 10.6in. at all focal lengths, and maximum magnification ratio of 1:4.5. The super-wide angle's useful range of view can be conveniently utilized by simply rotating the smooth zoom ring. Designed to suit the special characteristics of digital cameras SLD (Special Low Dispersion) Glass is used for effective compensation of color aberration. Two pieces of molded glass aspherical lens elements offer excellent correction for distortion as well as all types of aberration. It is an ideal lens for Digital SLR Cameras as well as film SLR cameras. Hyper Sonic Motor (HSM) for Sigma, Nikon and Canon mounts HSM (Hyper Sonic Motor) provides quiet, high-speed autofocus shooting, as well as full-time manual focus. It is easy to revert to Manual Focus by simply turning the focusing ring and overriding the AF. Inner Focus System An inner focus system provides high performance and convenience. The non-rotating lens barrel perfectly suits the matched petal shaped lens hood. A super wide-angle zoom lens with a 104 degree angle of view, and large aperture. This lens is ideal for Digital SLR Cameras. Includes 4 Year Service Plan (1 year international warranty plus 3 years extended warranty). Item Specifications: Product Description: Sigma EX wide-angle zoom lens - 17 mm - 35 mm Lens System: Wide-angle zoom lens Mounting Type: Nikon F Lens Aperture: F/2.8-4.0 Focal Length: 17 mm - 35 mm Optical Zoom: 2 x Min Focus Range: 10.6 in Focus Adjustment: Automatic, manual Lens Construction: 13 group(s) / 16 element(s) Special Functions: Wide angle, zoom Filter Size: 77 mm Length: 3 in Weight: 19.8 oz