Sigma 50mm F1.4 DG DN Art review

The Sigma 50mm F1.4 DG DN Art for Sony E and Leica L mount cameras is sharp where you want it, soft where you don’t

5 Star Rating
Sigma 50mm F1.4 DG DN Art
(Image: © Matthew Richards)

Digital Camera World Verdict

The new and improved Sigma 50mm DN Art lens for Sony E and Leica L mount shaves some of the size and weight off the previous ‘DG’ edition, while going extra-large on performance. It has quicker autofocus, a host of handling refinements and image quality to die for, combining epic sharpness even wide-open at f/1.4 with beautiful bokeh. Even so, it’s still a big lens for a ‘nifty fifty’ and relies a little on in-camera correction for pincushion distortion.


  • +

    Spectacular image quality

  • +

    Great handling

  • +

    Robust, weather-sealed construction


  • -

    Big for a 50mm f/1.4

  • -

    Noticeable distortion when uncorrected

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There’s quite a history behind the Sigma 50mm F1.4 DG DN Art. Its heritage includes the 50mm F1.4 DG HSM for DSLRs, which launched back in February 2014 as the second ‘Art’ prime in the company’s Global Vision line-up of Art, Contemporary and Sports lenses. As such, it puts artistic expression at the head of the design criteria, with no concessions to minimizing size and weight. The DG was and is an excellent lens, but it’s physically about 50 per cent longer and 60 per cent heavier than Sigma’s previous 50mm f/1.4 lens, which itself was no lightweight. The DG lens was later adapted to make it available in Sony E and Leica L mount options for mirrorless cameras, but that made the physical length even longer. The new ‘DN’ version has been redesigned from the ground up for mirrorless E and L mount cameras, gaining a host of impressive upgrades in the process.


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Matthew Richards

Matthew Richards is a photographer and journalist who has spent years using and reviewing all manner of photo gear. He is Digital Camera World's principal lens reviewer – and has tested more primes and zooms than most people have had hot dinners! 

His expertise with equipment doesn’t end there, though. He is also an encyclopedia  when it comes to all manner of cameras, camera holsters and bags, flashguns, tripods and heads, printers, papers and inks, and just about anything imaging-related. 

In an earlier life he was a broadcast engineer at the BBC, as well as a former editor of PC Guide.