Sigma 24-70mm f2.8 and 18-250mm OS
gefunden am 04.03.2009Sigma 18-250mm F3.5-6.3 DC OS HSM specifications Maximum format size APS-C / DX Focal length 18-250mm Diagonal Angle of view 69.3º - 5.7º (1.7X APS-C) Maximum aperture F3.5 Minimum aperture F22 Lens Construction 18 elements/14 groups, 3 aspheric elements, 4 SLD elements Image Stabilization Yes Number of diaphragm blades 7 Minimum focus 45 cm Maximum magnification 1 : 3.4 AF motor type Hyper Sonic Motor Filter thread 72 mm Supplied accessories Front and rear caps, Lens Hood, Soft Case Weight 630g (22.2 oz) Dimensions 79mm diameter x 101mm length (3.1 x 4 in) Lens Mount Canon, Nikon, Pentax, Sigma, Sony 24-70mm F2.8 EX DG HSM specifications Focal length 24 - 70mm Angle of view 84.1°-34.3° Maximum aperture F2.8 Minimum aperture F22 Lens Construction 14 elements/12 groups, 1 ELD (Extraordinary Low Dispersion) glass, 2 SLD (Special Low Dispersion) glass elements, 3 Aspherical elements Number of diaphragm blades 9 (rounded) Minimum focus 38 cm (15 in) Maximum magnification 1 : 5.3 AF motor type Ring-type HSM (Hyper Sonic Motor) Full-time manual focus Image stabilization None Filter thread 82 mm Supplied accessories Petal-type lens hood, Case Dimensions 88.6mm diameter x 94.7mm length (3.5 x 3.7 in) Lens Mount Sigma, Canon, Nikon, Pentax, Sony