Photographers using an APS-C Canon R system body are finally about to have more options for affordable wide lenses, as Sigma ...

They are unique amongst full-frame cameras, but how do you choose the best lenses for the Sigma fp and Sigma fp L?

That's why we have rounded up our favourite lenses for astrophotography, all wide-angle lenses designed to ... lens for astrophotography overall The Sigma 14mm f/1.4 DG DN Art lens is great ...

The new lenses increase the total number of Sigma 'RF-S' lenses to six in all, and are the first wide-aperture primes; the 16mm lens has an equivalent 24mm focal length, while the 23mm lens has a ...

The edges do almost as well, with low figures that are a credit to Sigma for such a wide-angle lens. Chromatic aberration (CA) is the lens' inability to focus on the sensor or film all colours of ...

Bokeh, the smoothness and gradation of out-of-focus backgrounds, is harder to achieve with wide angle lenses, but with an f/1.4 maximum aperture then out-of-focus backgrounds become viable.

The top three includes our favorite wide-angle zoom lens, plus a pair of the top primes ... you’ll find third-party options from the likes of Sigma in our list, plus some alternative suggestions ...