Is the Canon EF 24-70mm f/2.8L worth the extra cost over the Sigma 24-70mm f/2.8?
Asked 1/12/2011
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I'm choosing a standard zoom for general use and some low-light gig/concert photography on a Canon EF body. I'm comparing the Canon EF 24-70mm f/2.8L USM with the Sigma 24-70mm f/2.8 and wondering whether the Canon's much higher price is justified. In real-world use, how do they compare for sharpness, low-light performance, autofocus/build, and overall value?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
15y ago
2 Answers
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Absolutely. With most lenses, the old saying 'you get what you pay for' applies. If you want to buy a good Sigma lens (they have some excellent ones), you'll have to buy an expensive one.
Between these particular models, the Sigma is much softer near the wide-angle end and has stronger fall-off as well. At the long end, it diminishes but you have to stop it down a few more stops than on the Canon.
The Canon unit is also weather-sealed against the elements, dust, moisture, rain and snow, when used on a weather-sealed DSLR.
Originally by user1620. Source · Licensed CC BY-SA 4.0
user1620
15y ago
0
Generated from our catalog & community — verify before relying on it.
Based on the community feedback, yes—the Canon 24-70mm f/2.8L is generally the better lens, and the price difference reflects real advantages.
The Canon is reported to be noticeably sharper, especially at the wide end, where the Sigma is softer and shows stronger light fall-off. At longer focal lengths the gap narrows, but the Sigma may need to be stopped down more to match the Canon. The Canon also offers better build quality, USM autofocus, and weather sealing when paired with a sealed Canon body.
That said, “worth it” depends on your priorities. If you want the strongest optical performance, better AF/build, and shoot often in demanding conditions, the Canon is the safer choice. If budget matters more and you can accept some compromises, the Sigma may still be usable.
One extra note from the answers: for concert/gig work, f/2.8 can still be limiting in very dark venues, so lens choice alone may not solve low-light challenges.
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