Personally, I feel the lens is very sharp, as indicated on Photodo. I tested the lens out on some portraits shots and found the resulting photos to be way too ...

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 ...

Being a macro lens, I use it in manual focus mode most of the time anyway, especially for 1:1 (one-to-one) magnification. I managed to continue using it for ...

An extremely fast ultra wide-angle lens.

A solid-built ultra wide-angle lens.

8 EX DG DIAGONAL Fisheye -- A Precise Lens for Photography. Sun, 25 Apr 2010 06:15:25 -0700. Sigma 8mm F3.5 EX DG Circular Fisheye -- The High Resolution Lens.

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 ...

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 ...

Nov 19, 2019 · That's a good question. In the past, you have the send the lens to Sigma to have the firmware updated. I don't know if there is anyway you can ...

Servicing the Sigma 105mm f/2.8 EX macro lens ... I'm curious why Sigma use a belt drive system in this lens... ... Sigma lens autofocuses perfectly. I notice other ...