As indicated by their name, they are almost identical. They both offer zoom function in the 70mm to 200mm range, f/2.8 wide-open aperture for low-light work, ...

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.

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 ...

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 ...

An extremely fast ultra wide-angle lens.

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 ...

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 ?

It features 100 to 300 mm focal length with the minimum focus of objects at a distance of 1.8 meters. This lens has been designed with a maximum aperture of f/4 ...

The auto-focus mechanism on this lens is based on Canon's micro motor. It is noisy and doesn't sound very smooth. In low-light and low-contract situation, it ...