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Canon EF 24-70mm f/2.8L II USM vs Sigma 18-50mm f/2.8 EX DC

Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.

Verdict at a glance

  • Sigma 18-50mm f/2.8 EX DC goes wider (18mm vs 24mm).
  • Canon EF 24-70mm f/2.8L II USM reaches further (70mm vs 50mm).
Specification comparison
Spec EF 24-70mm f/2.8L II USM 18-50mm f/2.8 EX DC
Brand Canon Sigma
Mount Canon EF Canon EF
Type Zoom Zoom
Focal length 24-70mm 18-50mm (wider)
Max aperture f/2.8 f/2.8
Released 2012 n/a
Blades 9 7
Format full-frame n/a
Groups 13 13
Af motor USM n/a
Elements 18 15
Weight g 805.0 n/a
Filter mm 82 67
Length mm 113.0 n/a
Diameter mm 88.5 n/a
Min focus m 0.38 0.28 (closer focusing)
Max magnification 0.21 0.2

Canon EF 24-70mm f/2.8L II USM

The second generation of Canon's pro standard zoom, with a constant f/2.8 aperture and weather sealing for demanding full-frame work.

Pros

  • Constant f/2.8
  • Sharp across the zoom range
  • Weather-sealed
  • Wide-to-short-tele range

Cons

  • No image stabilization
  • Heavy (about 800 g)
  • Large 82mm filter thread

Sigma 18-50mm f/2.8 EX DC

A 18-50mm f/2.8 APS-C fast standard zoom lens, the Sigma 18-50mm f/2.8 EX DC is designed for Canon EF mount bodies. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.

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