Canon RF 28-70mm f/2.8 IS STM

Canon RF 28-70mm f/2.8 IS STM

Canon
88 Overall Score
vs
Tamron Di III VXD 20-40mm f/2.8 Di III VXD

Tamron Di III VXD 20-40mm f/2.8 Di III VXD

Tamron
78 Overall Score

Scores

Macro
Canon
91
Tamron
78
Landscape
Canon
84
Tamron
69
Professional
Canon
82
Tamron
83
Video Cinema
Canon
83
Tamron
72
Budget
Canon
80
Tamron
73
Wildlife Sports
Canon
80
Tamron
65
Portrait
Canon
52
Tamron
79
Travel
Canon
78
Tamron
65
Street
Canon
68
Tamron
75

Specifications

Canon RF 28-70mm f/2.8 IS STMTamron Di III VXD 20-40mm f/2.8 Di III VXD
Optics
Typezoomzoom
Focal Length Min28 mm20 mm
Focal Length Max70 mm40 mm
Elements1512
Groups1211
Aspherical Elements2★1
ED Elements24★
CoatingSuper Spectra Coating (SSC)fluorine coating
Aperture
Max Aperturef/22f/2.8
Min Aperturef/2.8f/2.8
Constant✓✓
Diaphragm Blades9★—
Build
MountCanon RFSony E
Formatfull-framefull-frame
Weather Sealed✓✓
Weight0.49 kg0.37 kg★
Filter Thread67 mm67 mm
AF & Stabilization
AF TypeSTM★VXD (Voice-coil eXtreme-torque Drive)
Stabilization✓★✗
Stabilization Stops5.5 stops★—
Focus
Min Focus Distance239 mm170 mm★
Max Magnification1:4.21:3.8

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 (88th percentile)88th %ile
  • Below average aperture (20th percentile)20th %ile
  • Below average bokeh (23rd percentile)

Tamron Di III VXD 20-40mm f/2.8 Di III VXD

  • Strong macro (87th percentile)87th %ile
  • Strong aperture (83rd percentile)83rd %ile
  • Strong optical (83rd percentile)83rd %ile
  • Strong build (82nd percentile)82nd %ile
  • Below average social proof (30th percentile)

Pricing

Tamron Di III VXD 20-40mm f/2.8 Di III VXD is $409 cheaper (1.6x less).

Canon RF 28-70mm f/2.8 IS STM0.084score per dollar
vs
Tamron Di III VXD 20-40mm f/2.8 Di III VXD0.122score per dollar

Tamron Di III VXD 20-40mm f/2.8 Di III VXD offers 1.5x better value for money

Canon RF 28-70mm f/2.8 IS STM

Best Buy
$1,049
Newegg
$1,090
B&H Photo
$1,099
Best Buy
$1,099
Adorama
$1,099

Tamron Di III VXD 20-40mm f/2.8 Di III VXD

Newegg
$640
Adorama
$699
B&H Photo
$699
Amazon
$699
Best Buy
$719

Verdict

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

Scores 88 overall, wins 6 of 9 usage categories and 5 of 22 specs.

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

MacroBudgetTravelLandscapeVideo CinemaWildlife Sports

Tamron Di III VXD 20-40mm f/2.8 Di III VXD Better at:

StreetPortrait

Also Consider

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Sigma Contemporary 18-50mm f/2.8 DC DN
100 $570
NIKKOR Z 17-28mm f/2.8
Nikon NIKKOR Z 17-28mm f/2.8
94 $1,050
Panasonic Leica DG Vario-Elmarit H-ES12035 12-35mm
91 $670
View Details & Prices: Canon RF 28-70mm f/2.8 IS STM View Details & Prices: Tamron Di III VXD 20-40mm f/2.8 Di III VXD