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 ...

The lens is very solid and sturdy, yet not very heavy. Focus ring has full throw, rather than the very short throws on zoom lens, which may be why AF is slow.

A solid-built ultra wide-angle lens.

Personal review of the Sigma 70-200 f/2.8 EX APO HSM zoom lens ... Some thoughts on the Sigma 70-200mm f/2.8 EX APO HSM zoom lens ... Motor (HSM) and Ultrasonic ...

Personally, I've encountered auto focus problems with my Sigma AF105mm macro lens ever since I've had it. I find that sometimes AF is completely redundant in ...

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 like it with B/W because I do not like ...

An extremely fast ultra wide-angle lens.

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 features which could ...

Sigma 20mm f/1.8 D EX DG Aspherical Lens. Sun, 13 May 2012 12:58:28 -0700. Sigma EX motor. Sun, 13 May 2012 04:43:47 -0700. Sigma teleconverter compatibility.

Nov 19, 2019 · Sigma 105mm EX DG Macro - anyone know how to update the firmware and where can I get a copy of the firmware ?