Sigma 17-40mm f/1.8 DC | Art: One-minute review

Cast your mind back to 2013 and Sigma had just brought out its 18-35mm f/1.8 DC HSM | Art lens – the world’s first zoom with a fast, constant f/1.8 aperture – and was set to revolutionize the photography industry.

Over a decade since that lens pushed the boundaries of what a zoom lens could do, the world's largest independent lens manufacturer has gone one better with the Sigma 17-40mm f/1.8 DC | Art, which like its predecessor boasts a constant and bright f/1.8 aperture and promises to deliver exceptional image quality comparable to a prime, but with an expanded zoom range, all while being more than 30% lighter than its predecessor.

The lens is specifically designed for mirrorless cameras with an APS-C sensor and is available in L-mount, Sony E, Fujifilm X, and Canon RF versions. I've spent a month testing an ...