Canon RF 28-70mm f/2.8 IS STM

Canon RF 28-70mm f/2.8 IS STM

Canon
86 Overall Score
vs
Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm

Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm

Sigma
61 Overall Score

Scores

Macro
Canon
95
Sigma
59
Video Cinema
Canon
82
Sigma
58
Budget
Canon
79
Sigma
64
Landscape
Canon
79
Sigma
67
Travel
Canon
78
Sigma
51
Professional
Canon
77
Sigma
55
Wildlife Sports
Canon
75
Sigma
50
Street
Canon
66
Sigma
50
Portrait
Canon
49
Sigma
40

Specifications

Canon RF 28-70mm f/2.8 IS STMSigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm
Optics
Typezoomzoom
Focal Length Min28 mm10 mm
Focal Length Max70 mm20 mm
Elements1513
Groups1210
Aspherical Elements24★
ED Elements23★
CoatingSuper Spectra Coating (SSC)Super Multi-Layer Coating
Aperture
Max Aperturef/22f/22
Min Aperturef/2.8f/3.5
Constant✓✓
Diaphragm Blades9★7
Build
MountCanon RFNikon F
Formatfull-frame★APS-C
Weather Sealed✓★—
Weight0.49 kg★0.52 kg
Filter Thread67 mm82 mm
AF & Stabilization
AF TypeSTM★HSM
Stabilization✓✓
Stabilization Stops5.5 stops★—
Focus
Min Focus Distance239 mm★240 mm
Max Magnification1:4.2★0.15x

Pros & Cons

Canon RF 28-70mm f/2.8 IS STM

  • Strong stabilization (99th percentile)99th %ile
  • Strong user sentiment (98th percentile)98th %ile
  • Strong social proof (90th percentile)90th %ile
  • Strong af (87th percentile)87th %ile
  • Below average aperture (20th percentile)20th %ile
  • Below average bokeh (23rd percentile)

Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm

  • Strong optical (90th percentile)90th %ile
  • Strong social proof (90th percentile)90th %ile
  • Strong stabilization (82nd percentile)82nd %ile
  • Strong versatility (72nd percentile)
  • Below average bokeh (13th percentile)13th %ile
  • Below average aperture (20th percentile)20th %ile

Pricing

Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm is $611 cheaper (2.3x less).

Canon RF 28-70mm f/2.8 IS STM0.079score per dollar
vs
Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm0.128score per dollar

Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm offers 1.6x better value for money

Canon RF 28-70mm f/2.8 IS STM

Newegg
$1,090
Adorama
$1,099
B&H Photo
$1,099
Amazon
$1,149
Best Buy
$1,149

Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm

Amazon
$479
Newegg
$600

Verdict

★ Winner: Canon RF 28-70mm f/2.8 IS STM

Scores 86 overall, wins 9 of 9 usage categories and 8 of 22 specs.

Canon RF 28-70mm f/2.8 IS STM Better at:

MacroBudgetStreetTravelPortraitLandscapeProfessionalVideo CinemaWildlife Sports

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View Details & Prices: Canon RF 28-70mm f/2.8 IS STM View Details & Prices: Sigma EX DC HSM 10-20mm f/3.5 EX DC HSM 20mm