vs

differences

Reasons to consider the Sigma 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef

Image stabilization Sigma OS vs None
Help
Helps eliminate blur caused by small camera movements
Wider aperture f/2.8 vs f/4
Help
At its widest, the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef captures slightly more light, 1 f-stop
More zoom 4.1x vs 2.4x
Help
More than 70% more zoom, giving you more flexibility for photos
Slightly better telephoto 70 mm vs 40 mm
Help
Around 80% more reach, less perspective distortion
Sigma 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef Learn more about
the Sigma 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef

Reasons to consider the Canon EF 17-40mm f/4L USM

Has a consant aperture Yes vs No
Help
Constant aperture lenses offer the same aperture at all focal lengths
Canon EF 17-40mm f/4L USM Learn more about
the Canon EF 17-40mm f/4L USM

similarities

Compared to lenses

Common Strengths Common Weaknesses
Focus motor Silent focus motor Help
17-70mm f/2.8-4 DC Macro OS HSM Canon-ef:Sigma HSM
EF 17-40mm f/4L USM:Canon USM
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses

Compared to wide angle lenses

Common Strengths Common Weaknesses

LensHero is not aware of any interesting strengths shared by these two products.

LensHero is not aware of any interesting weaknesses shared by these two products.

competitors

Shared Competitors

Advantages

Disadvantages

Canon EF-S 15-85mm f/3.5-5.6 IS USM

Canon EF-S 15-85mm f/3.5-5.6 IS USM

Travel lens

$699

Image stabilization Has better image stabilization
Zoom range Has slightly large zoom range
Aperture Has a narrower aperture
Tamron 17-50mm f/2.8 XR Di II LD Canon-ef

Tamron 17-50mm f/2.8 XR Di II LD Canon-ef

Wide angle lens

$459

Wide maximum Has a higher max f/stop
Focus motor Lacks a silent focus motor
Canon EF 50mm f/1.8 II

Canon EF 50mm f/1.8 II

Low light lens

$92 - $110

Aperture Has a wider aperture
Length Is shorter
Focus motor Lacks a silent focus motor
Canon EF-S 18-55mm f/3.5-5.6 IS

Canon EF-S 18-55mm f/3.5-5.6 IS

Wide angle lens

$199

Image stabilization Has better image stabilization
Aperture Has a narrower aperture
Focus motor Lacks a silent focus motor
Canon EF-S 17-55mm f/2.8 IS USM

Canon EF-S 17-55mm f/2.8 IS USM

Wide angle lens

$1,179

Image stabilization Has better image stabilization
Sigma 17-50mm f/2.8 EX DC OS HSM Canon-ef

Sigma 17-50mm f/2.8 EX DC OS HSM Canon-ef

Wide angle lens

$594

Canon EF-S 18-135mm f/3.5-5.6 IS

Canon EF-S 18-135mm f/3.5-5.6 IS

Travel lens

$499 - $549

Image stabilization Has better image stabilization
Zoom range Has significantly large zoom range
Aperture Has a narrower aperture
Focus motor Lacks a silent focus motor

Sigma 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef Competitors

Advantages

Disadvantages

Canon EF-S 17-85mm f/4-5.6 IS USM

Canon EF-S 17-85mm f/4-5.6 IS USM

Travel lens

$489

Image stabilization Better image stabilization
Zoom range Slightly more zoom
Aperture Narrower aperture

Canon EF 17-40mm f/4L USM Competitors

Advantages

Disadvantages

Canon EF 16-35mm f/2.8L II USM

Canon EF 16-35mm f/2.8L II USM

Fisheye lens

$1,499

Fisheye Fisheye lens
Aperture Wider aperture
Lowest price More expensive
Magnification Slightly less magnification
Canon EF-S 10-22mm f/3.5-4.5 USM

Canon EF-S 10-22mm f/3.5-4.5 USM

Wide angle lens

$759

Wide maximum Narrower aperture
Aperture Wider aperture
Fixed aperture Has a variable aperture
Magnification Less magnification
Canon EF 24-105mm f/4L IS USM

Canon EF 24-105mm f/4L IS USM

Wide angle lens

$1,149

Image stabilization Image stabilization
Zoom range More zoom
Lowest price Slightly more expensive
Weight Slightly heavier
Canon 24-105mm f/4L IS USM

Canon 24-105mm f/4L IS USM

Wide angle lens

$1,059

Image stabilization Image stabilization
Zoom range More zoom
Lowest price Slightly more expensive
Weight Slightly heavier
Canon EF 24-70mm f/2.8L USM

Canon EF 24-70mm f/2.8L USM

Wide angle lens

$1,280

Aperture Wider aperture
Max focal length Slightly better telephoto
Weight Heavier
Length Slightly longer

discussion Which do you think is better?

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