A super wide-angle zoom lens with a 104 degrees 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 Weight: 19.8 oz Length: 3 in Min Focus Range: 10.6 in Lens System: Wide-angle zoom lens Lens Aperture: F/2.8-4.0 Focus Adjustment: Automatic, manual Focal Length: 17 mm - 35 mm Mounting Type: Minolta A-type Lens Construction: 13 group(s) / 16 element(s) Filter Size: 77 mm Special Functions: Wide angle, zoom