vs

differences

Reasons to consider the Sigma 17-50mm f/2.8 EX DC 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 17-50mm f/2.8 EX DC OS HSM Canon-ef captures slightly more light, 1 f-stop
Slightly more zoom 2.9x vs 2.4x
Help
Around 30% more zoom, giving you more flexibility for photos
Sigma 17-50mm f/2.8 EX DC OS HSM Canon-ef Learn more about
the Sigma 17-50mm f/2.8 EX DC OS HSM Canon-ef

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

LensHero is not aware of any important advantages of the Canon EF 17-40mm f/4L USM vs the Sigma 17-50mm f/2.8 EX DC OS HSM Canon-ef.
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
Fixed aperture Constant aperture lenses Help
The same aperture at all focal lengths
Focus motor Silent focus motor Help
17-50mm f/2.8 EX DC 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
Max focal length Poor telephoto Help
17-50mm f/2.8 EX DC OS HSM Canon-ef:50 mm
EF 17-40mm f/4L USM:40 mm

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 16-35mm f/2.8L II USM

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

Fisheye lens

$1,467 - $1,699

Fisheye Is a fisheye lens
Canon EF-S 17-55mm f/2.8 IS USM

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

Wide angle lens

$1,059

Image stabilization Has better image stabilization
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 24-105mm f/4L IS USM

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

Wide angle lens

$1,149

Image stabilization Has better image stabilization
Aperture Has a narrower aperture
Canon EF 24-70mm f/2.8L USM

Canon EF 24-70mm f/2.8L USM

Wide angle lens

$1,280

Canon 24-105mm f/4L IS USM

Canon 24-105mm f/4L IS USM

Wide angle lens

$1,059

Image stabilization Has better image stabilization
Aperture Has a narrower aperture
Tokina 11-16mm f/2.8 AT-X 116 Pro DX Canon-ef

Tokina 11-16mm f/2.8 AT-X 116 Pro DX Canon-ef

Wide angle lens

$599

Magnification Has worse macro
Focus motor Lacks a silent focus motor

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

Advantages

Disadvantages

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

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

Wide angle lens

$499

Zoom range More zoom
Max focal length Slightly better telephoto
Fixed aperture Has a variable aperture
Tamron SP 17-50mm f/2.8 XR Di-II VC LD Canon-ef

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

Wide angle lens

$499

Wide maximum Significantly narrower aperture
Focus motor Doesn't have 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

$185 - $199

Image stabilization Better image stabilization
Weight Slightly lighter
Fixed aperture Has a variable aperture
Focus motor Doesn't have a silent focus motor

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

Advantages

Disadvantages

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

discussion Which do you think is better?

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