Canon EF 70-200mm f/2.8L IS III USM vs Sigma 50-100mm f/1.8 DC HSM Art

Pick the Canon EF 70-200mm f/2.8L IS III USM if

• You need more reach: 200mm vs 100mm at the long end
• You shoot handheld in dim light or video: it has optical image stabilization and the Sigma 50-100mm f/1.8 DC HSM Art does not
• You want bigger close-ups: 0.21× vs 0.15× maximum magnification
• You shoot full frame: the Sigma 50-100mm f/1.8 DC HSM Art is made for APS-C
• You prefer a newer design: released 2018 vs 2016
• Our notes say it suits: Sports and action, weddings, concerts and events

Pick the Sigma 50-100mm f/1.8 DC HSM Art if

• You need 1⅓ stops more light for low light or background blur (f/1.8 vs f/2.8)
• You want a wider view: 50mm vs 70mm at the wide end
• You shoot close-ups: it focuses down to 0.95 m vs 1.2 m
• You care about the shape of out-of-focus highlights: 9 aperture blades vs 8

Our notes

Canon EF 70-200mm f/2.8L IS III USM

The third version of Canon's pro 70-200mm f/2.8 telephoto zoom, with image stabilization and a weather-sealed L build for sports, weddings and events.

Pros

• Constant f/2.8 aperture
• Image stabilization
• Weather-sealed L build
• Fast ring USM autofocus

Cons

• Heavy to carry all day
• Large front element shows fingerprints and dust
• Only a modest step over the II

Our notes

Sigma 50-100mm f/1.8 DC HSM Art

A 50-100mm f/1.8 APS-C fast short-telephoto zoom lens, the Sigma 50-100mm f/1.8 DC HSM Art is designed for Canon EF mount bodies, from the Sigma Art line with Hyper Sonic Motor autofocus. A long-reach telephoto zoom aimed at sports and wildlife.