The Sigma 70-200mm HSM APO lens is another improvement in the Sigma telephoto lens lineup. Sigma is known to be a maker of good alternative telephoto lens for people who cannot afford the more expensive Canon or Nikon version. This lens is considered by many as a great sports and portrait lens. Do you really need this...

Sigma 18-50mm lens is a fast, standard zoom lens made for cropped sensor DSLR camera. With this lens, you can enjoy a wide range of focal length as well as fast aperture. The lens is priced competitively and is aimed to compete with the Nikon or Canon equivalent of the excellent 17-55 lens. Can this lens compete with...

The Sigma 18-200 lens presents a great alternative to the more expensive 18-200 IS lens offered by Canon or the 18-200 Nikkor VR lens offered by Nikon. At an unbelievable low price, one can certainly question the performance of this lens. Questions such as “Can this lens perform as well as the Nikon?” often...

Sigma 100-300mm is a telephoto lens that everyone is raving about. It promises great optical quality inside a sturdy build at a very attractive price points. You can easily shoot wildlife and portraiture with this lens. To know more about this lens and why everyone is so amazed with it, see the complete, in-depth review...

The Sigma 17-70mm lens is a great alternative for someone looking to upgrade from a kit lens. The wider aperture and the longer telephoto reach looks promising. Also, the build quality is better compared to any kit lens. However, one question still remains: is the increase in optical quality worth the extra price? See...

The Sigma 50-150mm f/2.8 EX DC APO HSM II lens is a fast telephoto zoom lens made exclusively for the cropped sensor DSLR camera. It aims to give the equivalent of 70mm to 200mm focal length (in terms of 35mm equivalent). A lot of people question the sharpness of this lens (due to the reduced optic size of this lens) and...

The Sigma 24-70 f/2.8 is a really big lens (with 82mm filter thread) that is aimed for full frame DSLR camera user. When tested on the cropped sensor DSLR, this lens really shines. A lot of people swear that this lens is the sharpest lens that they have ever tried on their camera. Just how sharp can this lens be and is...

The Sigma 27-40 lens is an attractive alternative for someone who cannot purchase the expensive Nikon or Canon version. With constant f/2.8 aperture and HSM autofocus motor, this lens can be regarded as the standard fast zoom lens for full frame sensor. Can this lens perform as good as the Canon or Nikon equivalent? Find...

The Sigma 18-200 OS lens is an update from the old, non-stabilized 18-200 lens. The newer version has the optical stabilization feature and it is aimed to compete at the Canon and Nikon equivalent. A lot of people are looking at this lens because it is more affordable. Can this compete in terms of optical quality? See...

The Sigma 10-20 f/3.5 lens offers a faster, constant f/3.5 aperture compared to the older generation which has the f/4-5.6 aperture. The older generation is a lens that is loved by many, even by the die hard Nikon or Canon fans. The newer version is certainly very attractive but a lot of fans are concerned about the...