Lens names can be complicated things. Companies often try to fit every detail of the lens into the name, resulting in a string of abbreviations. While Sigma isn't the worst offender, it tends to stack ...

For wildlife photographers, the Sigma 500mm f/5.6 DG DN OS Sport seems like something of a holy grail lens. For a very long time, high-quality telephoto primes were an inaccessible dream for many, ...

Traditionally, ultra-bright aperture lenses have entailed significant caveats inherent in the extreme nature of their design, but, at least on paper, that may not be the case for the Sigma 50mm f1.2 ...

Little short of amazing. Image quality, light transmission and build quality are all huge pluses for the Sigma 14mm F1.8 DG HSM ART. Why you can trust Space.com Our expert reviewers spend hours ...