Wide-ranging interview with Sigma CEO finishes with new lens teaser The upcoming product is a "telephoto lens that has never existed before" We don't know what the lens is yet, or when it is ...

Tamron went large on zoom range with a new compact telephoto lens, while Sigma launched its first lens for the Canon EOS R ...

"a telephoto lens that has never existed before." The tease was 'casually' dropped into a wide-ranging interview with Sigma CEO, Kazuto Yamaki – the man whose father founded the company in 1961.

With its excellent Art line reputation, Sigma is one of those brands – and its lenses are discounted even further for its end ...

Chromatic aberration was moderate in the corners at the full wide-angle setting of the Sigma SD1's 17-50mm lens, exacerbated somewhat by the softness. At telephoto, chromatic aberration was very ...

The Sigma 24-105mm F4 DG OS HSM is the standard zoom lens from the Sigma "Art" line, offering stable and fine image quality from wide to mid-telephoto range.

The dock is more useful for telephoto lenses, and even then, its appeal is marginal. The 10-18mm's small barrel makes for tight control surfaces, so Sigma omits an aperture ring, a focus toggle ...