Overall, this is an excellent lens. It is the only lens I take with me to shoot roller-hockey games. Based on my experience, the focal length of the Canon 300mm ...

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 ...

This is an extremely sharp macro lens that is capable of 1:1 ratio. I use it to get close-up of flowers, insects, and other tiny objects. Some of the lens ...

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 ...

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 ...

A solid-built ultra wide-angle lens.

8 all through the zoom range. The Sigma APO 200 to 500mm F2.8 EX DG lens is an exciting product from Sigma that can be used to create amazing images with best ...

It turned out that the AF belt has weakened and they had replaced it. Now the AF works just fine on this lens. With 20/20 hindsight, it is apparent the AF belt ...

Available in Nikon, Canon, Sigma, Minolta, Sony and Pentax mounts, Sigma APO has effective stabilization and wonderful finish that makes it ideal for wildlife, ...

This Canon EF 24-70mm f/2.8 L USM lens actually compliments a plethora of other equipment I have for my Canon. The 24-70 L has a magnification of 0.29x at 70mm.