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, ...

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology. At $5,999, the Sigma 500mm F4 DG OS HSM Sports seems like ...

10x zoom lenses are normally reserved for the lower end of the interchangeable lens market due to the compromises that have to be made in manufacturing them. This lens from Sigma however, is EX ...

The Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary lens offers very similar image quality to the Sports version at a cheaper price, whilst being much lighter and therefore more suitable for ...

A redesign of Sigma's 150-600mm Sports zoom lens, specifically for L Mount and Sony FE mount cameras brings this massive optic to the mirrorless world. Inevitably, it is big and it is heavy, but ...

Image Quality Sigma provided the lens in a Canon mount, so I used the 20-megapixel, full-frame EOS 6D ($1,999.99 at Amazon) to test the image quality it's able to deliver. We normally use Imatest to ...

The Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary ($1,089) is a big, heavy lens. But that's no surprise when you consider its maximum reach, full-frame sensor coverage, and sturdy build. A strong ...