They both offer zoom function in the 70mm to 200mm range, f/2.8 wide-open aperture for low-light work, and provide super-quiet auto-focus operation with ...

Sigma has been so proud to release the world's first ultra telephoto zoom lens, Sigma APO 200 to 500mm F2.8 EX DG, which gives the fastest aperture of F2.8 at ...

The Sigma 24-60mm F2.8 EX DG Lense is one of sigma's latest professional lens creations. Although simple in design, the overall lens offers a stunning array of ...

A solid-built ultra wide-angle lens.

Personal review of the Sigma 105mm f/2.8 EX macro lens ... Focus ring has full throw, rather than the very short throws on zoom lens, which may be why AF is slow.

An extremely fast ultra wide-angle lens.

The Sigma 105mm f/2.8 EX macro has been my all-time favorite lens. It has the capability for me to explore tiny worlds around our environment, which we ...

This telephoto range helps photographers in short perspective by bringing the subject closer. Lens has optical stabilization of Sigma original standard that is ...

Some thoughts on the Sigma 28-105mm f/2.8-4 zoom lens ... The Sigma 28-105 is good for the money. It is a bit soft. I like using it for portrait and B&W photos. I ...

Sigma APO 200-500mm (400-1000mm) F2.8 EX DG -- The Ultra Telephoto Zoom Lens. Sat, 12 May 2012 19:35:46 -0700. Nikkor 80-400mm f/4.5-5.6D ED VR Compatible ...