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I recently tested the astroimaging capability of the 20mm Sigma f1.4 DG HSM Art lens with my two DSLR cameras. Released in fall 2015, this Sigma lens has 15 elements in 11 groups. The optics contain ...

So I purchased one of the new Sigma 18-300mm F3.5-6.3 DC MACRO OS HSM Contemporary lenses for my Canon T1i and the USB dock to make adjustments/updates. There is some definite back focusing at middle ...

Sigma lenses have been offering photographers and content creators alternatives to first-party lenses for decades. In that time, the company has built a reputation for high-quality, affordable glass ...

In this review, we’ll look at the Sigma line of cinema lenses. I have three of these lenses that I've used recently on a real-world shoot with this Blackmagic URSA Mini Pro 4.6K. Two are from the high ...

Sigma has long been a favorite third-party lens company for combining high quality and low price. Whether you shoot Canon, Nikon, Sony, or an L-Mount camera from Leica, Panasonic, or Sigma, Sigma a ...