Sigma 12-24mm f/4.5-5.6 II DG HSM Ultra Wide Angle Lens

Sigma 12-24mm f/4.5-5.6 II DG HSM Ultra Wide Angle Lens

The Sigma 12-24mm f/4.5-5.6 II DG HSM is an ultra wide angle zoom lens suitable for full frame DSLR cameras, released on February 8, 2011. The Sigma 12-24mm f/4.5-5.6 II DG HSM uses a revised optical formulation that includes four latest low dispersion glass elements and one SLD element. Four non spherical elements were used to reduce distortion and other optical anomalies. The equivalent focal length range of the lens on APS-C digital cameras is 18-36mm, suitable for wide-angle shooting.
Macro lens suitable for 150mm f/2.8 EX DG HSM APO

Macro lens suitable for 150mm f/2.8 EX DG HSM APO

The Sigma 150mm f/2.8 EX DG HSM macro lens provides excellent image quality at a very reasonable price in relatively long focal lengths. On macro lenses, even on the fastest focusing speed lens, it takes some time to focus from near infinity or reverse. The focal length range of Sigma 150 is limited to between 15 inches and 20 inches (. 38m and. 52m), 20 inches (. 52m), and infinity - or it can allow for a full range.
Full frame telephoto lens suitable for 50-500mm f/4.5-6.3 DG OS HSM

Full frame telephoto lens suitable for 50-500mm f/4.5-6.3 DG OS HSM

This lens has a 10x focal length range (500mm/50mm=10x), starting from 50mm, which can meet a wide range of needs. The 500mm name at the top of the focal length range is particularly eye-catching. Like most telephoto lenses, the Sigma 50-500 OS has a variable maximum aperture. As longer zoom settings are selected, the maximum aperture opening decreases relative to the length of the lens.