Sigma 17-50mm F2.8 EX DC OS HSM - Canon EOS

The Sigma 17-50mm f2.8 EX DC OS HSM lens with Canon fit is an image-stabilised, standard zoom for digital SLR cameras with an APS-C sized sensor. The lens covers a focal length from 17mm wide angle and offers a large aperture of f/2.8 throughout the entire zoom range, making it ideal for many types of photography including portraiture and landscapes. Alongside Sigma's Optical Stabiliser, the lens also includes a hypersonic AF motor, for quicker, quieter focusing. Lens Construction 17 Elements in 13 Groups Angle of View (SD Format) 72.4 - 27.9 degrees Number of Diaphragm Blades 7 Blades (Rounded diaphragm) Minimum Aperture F22 Minimum Focusing Distance 28cm Maximum Magnification 1:5 Filter Size 77mm Dimensions Diameter 83.5mm X Length 92mm Weight 565g