SIGMA 12-24mm F/4.5-5.6 II DG HSM for Canon

The SIGMA 12-24mm F/4.5-5.6 II DG HSM is a wide-angle lens, ideal for both indoor and outdoor photography. It is a zoom lens with an aperture of  F/3.5-5.6. Its maximum aperture number is F/22. The lens design consists of 17 elements in 13 groups. It features SLD and FLD glasses which are used to minimise colour defects. The lens also features two aspherical lenses and one hybrid aspherical lens. The internal focusing system together with the Hyper Sonic Engine (HMS) allows both automatic and manual focusing.
Parameters and Specifications:
Bayonet:Canon EF
Optical construction:
17 lenses in 13 groups
Angle of view:
122-84.1°
Minimum aperture:
F/22
Minimum focus distance:
28cm
Reproduction ratio:
1:6.4
Number of diaphragm blades:
6
Dimensions:
85 x 120.2mm
Weight:
670g