Sigma APO 50-150mm F2.8 EX DC HSM
for digital SLR cameras with an APS-C size image
sensor, this large aperture F2.8 lens has a compact
and lightweight construction of 76.3mm (3.0") in
diameter, 132.6mm (5.2") in length and weighing just
780g (27.5oz) (Nikon Mount).
The incorporation of the very latest optical technology gives optimum lens performance providing excellent correction for flare, ghosting and all types of aberrations. High image quality is assured throughout the entire zoom range. Four SLD (Special Low Dispersion) glass elements are used for utmost correction of chromatic aberrations.
The HSM (Hyper Sonic Motor) system ensures quiet and high-speed auto focusing with full time manual focus override.
The addition of the 1.4x EX DG APO or 2x EX DG APO Tele Converters (optional extras) produces a 70-210mm F4 AF tele-zoom lens and a 100-300mm F5.6 AF ultra-telephoto zoom lens respectively.
Lens Construction:18 Elements in 14 Groups
Angle of View: 27.9 ° - 9.5 °
Number of Diaphragm Blades: 9 Blades
Minimum Aperture: F22
Minimum Focusing Distance: 100cm / 39.4 inches
Maximum Magnification: 1 : 5.3
Filter Size: Diameter 67mm
Lens Hood Bayonet Type
Diameter 76.3mm X Length 135.1mm
3.0 inches x 5.3 inches
Weight 770g/27.2 oz.