Sigma Art 24-70mm f/2.8 DG DN II 24-70mm

The Sigma 24-70mm f/2.8 Art II is so sharp it's almost a problem for the competition. Buy it for the stunning optics and effective stabilization, but don't expect magical bokeh or flawless autofocus.

The center sharpness is what really surprised us. It's bitingly sharp wide open at f/2.8, and it just gets better from there. The new HLA autofocus motor is fast and nearly silent for stills, though we did notice it can hunt a little in low-contrast scenes compared to the top-tier Sony glass. The stabilization is a standout, rated for 4 stops and landing in the 92nd percentile in our database. It makes handheld shooting at slower shutter speeds a breeze. The big letdown is the bokeh, which sits in a disappointing 28th percentile. It's a bit busy and nervous, so don't expect that creamy, buttery background blur you'd get from a fast prime.

The obvious rival is the Sony FE 24-70mm f/2.8 GM II. The Sony is lighter and has slightly faster, more reliable autofocus, but the Sigma is optically its equal or better in the center and costs a lot less. The Canon RF 28-70mm f/2.8 IS STM is another strong competitor for Canon shooters, but it's a different mount and a slightly different focal range. If you're on Sony E-mount, the Sigma is the smarter buy unless you absolutely need the most bulletproof AF for fast-paced sports. Skip the Tamron 18-300mm comparison entirely, that's a superzoom for a completely different crowd.

This is where Sigma usually wins, and the Art II is no exception. It delivers optical performance that punches way above its class, often nipping at the heels of lenses costing twice as much. The price spread across vendors is wild, from $781 to a ridiculous $199,800, so just ignore the outliers and grab it from a reputable dealer. For the real-world street price, you're getting a lens that makes the Sony 24-70mm GM II look overpriced.

The Sigma 24-70mm f/2.8 DG DN II Art is the sharpest standard zoom we've tested in a long time, and it's a genuine problem for Sony's own GM II. Sigma shrunk the body, added an aperture ring, and cranked up the resolving power to a level that's basically best-in-class. The optical score in our database puts it in the 98th percentile, which is just absurd for a zoom. If you're a Sony shooter who wants pro-level image quality without the pro-level price tag, this is the one to beat.

If you're a portrait photographer chasing creamy, dreamy bokeh, this isn't your lens. The background rendering is just too harsh. Go grab a fast prime like the Sony 85mm f/1.4 GM instead. And if you're a run-and-gun sports shooter who needs absolute AF reliability in every single frame, the native Sony GM II is the safer, if pricier, bet.

The Sigma 24-70mm f/2.8 DG DN II Art is the new default standard zoom for Sony shooters who care about image quality first. It's not perfect, the bokeh won't win any awards and the AF isn't quite Sony-native snappy, but the sheer resolving power and build quality for the price make it an easy recommendation. This is the lens that makes you question why you'd spend more.