This Sigma AF 18-125mm F3.5-5.6 DC zoom lens was exclusively designed for use with digital Single-Lens Reflex (SLR) cameras and has 6.9 times high magnification zoom ratio. Image circle is designed to match the size of the image sensor of digital SLR cameras. A Special Low Dispersion (SLD) and two pieces of aspherical glass elements produce high levels of optical performance through the entire zoom range. This has resulted in a compact, lightweight lens. This lens has a minimum focusing distance of 50cm (19.6in.) at all focal lengths and is equipped with an inner focusing system. Since the front of the lens does not rotate, a "Petal Shaped Hood" and a circular polarizing filter can be easily attached and used. This lens is also equipped with "Zoom Lock Switch" that eliminates "Zoom Creep."

• Lens Construction (groups / elements): 14 / 15
• Angle of View (diagonal): 69.3° - 11.4°
• Minimum Aperture: 22
• Minimum Focusing Distance: 50/19.7cm
• Magnifications (Macro): 1:5:3
• Filter Size: 62
• Dimensions (Diameter x Length): 2.7 x 3 in.
• Fully Extended Length: 129.5mm/5.1 in.