The 70-200mm market is crowded, but serious photographers looking for a good telephoto zoom lens should seriously consider Sigma's high-end but relatively affordable telephoto zoom. Stephen Shankland ...

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 14 years, which has given me a front row seat for the changeover from DSLRs to mirrorless cameras, ...

If you've been unsatisfied with Sigma's development in Optical Stabilizer lenses, here's some good news for you. They've drop three new zoom lens at PMA 2008, with OS ability of 4 stops of light ...

The newest zoom from Sigma doesn't feature an overly-ambitious aperture, but promises to make up for it with sharpness. Images, and the devices that capture them, are my focus. I've covered cameras at ...

To be completely honest, 600mm is not a focal length with which I feel intimately familiar. But, when I got the chance to spend a few days with Sigma’s new 150-600mm F/5-6.3 super-telephoto zoom lens, ...

The Sigma 70-200mm F2.8 DG DN OS Sports has a tough act to follow. We’ve always been big fans of the DG OS HSM Sports edition of the lens for Canon and Nikon DSLRs. It’s nothing short of magnificent ...

The SIGMA 70-200mm F2.8 DG DN OS Sports features a unique floating focus system. Two focusing groups, each using an HLA motor, move in opposite directions when focusing. This reduces internal ...

John Riley puts the 100-400mm Contemporary telephoto zoom lens from Sigma to the test to find out how good its reach really is.