Tamron
17-50mm f/2.8 XR Di II LD Canon-ef
 vs
Sigma
17-70mm f/2.8-4 DC Macro OS HSM Canon-ef

vs

differences

Reasons to consider the Tamron 17-50mm f/2.8 XR Di II LD Canon-ef
Has a consant aperture Yes vs No
Help
 Constant aperture lenses offer the same aperture at all focal lengths
Tamron 17-50mm f/2.8 XR Di II LD Canon-ef Learn more about
the Tamron 17-50mm f/2.8 XR Di II LD Canon-ef

Reasons to consider the Sigma 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
Has a silent focus motor Sigma HSM vs None
Help
 Focuses quickly and silently
Image stabilization Sigma OS vs None
Help
 Helps eliminate blur caused by small camera movements
More zoom 4.1x vs 2.9x
Help
 Around 40% more zoom, giving you more flexibility for photos
Slightly better telephoto 70 mm vs 50 mm
Help
 40% 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

similarities

Compared to lenses

Common Strengths Common Weaknesses

LensHero is not aware of any interesting strengths shared by these two products.
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 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
Wide maximum Has a lower max f/stop
Compare the EF-S 18-55mm f/3.5-5.6 IS vs the 17-50mm f/2.8 XR Di II LD Canon-ef
Compare the EF-S 18-55mm f/3.5-5.6 IS vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
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
Compare the EF-S 15-85mm f/3.5-5.6 IS USM vs the 17-50mm f/2.8 XR Di II LD Canon-ef
Compare the EF-S 15-85mm f/3.5-5.6 IS USM vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
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
Wide maximum Has a lower max f/stop
Compare the EF-S 17-55mm f/2.8 IS USM vs the 17-50mm f/2.8 XR Di II LD Canon-ef
Compare the EF-S 17-55mm f/2.8 IS USM vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
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
Wide maximum Has a lower max f/stop
Compare the 17-50mm f/2.8 EX DC OS HSM Canon-ef vs the 17-50mm f/2.8 XR Di II LD Canon-ef
Compare the 17-50mm f/2.8 EX DC OS HSM Canon-ef vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
Canon EF 17-40mm f/4L USM

Canon EF 17-40mm f/4L USM

Wide angle lens

$739
Aperture Has a narrower aperture
Wide maximum Has a lower max f/stop
Compare the EF 17-40mm f/4L USM vs the 17-50mm f/2.8 XR Di II LD Canon-ef
Compare the EF 17-40mm f/4L USM vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
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
Compare the EF-S 18-135mm f/3.5-5.6 IS vs the 17-50mm f/2.8 XR Di II LD Canon-ef
Compare the EF-S 18-135mm f/3.5-5.6 IS vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
Sigma 18-50mm f/2.8-4.5 DC OS HSM Canon-ef

Sigma 18-50mm f/2.8-4.5 DC OS HSM Canon-ef

Wide angle lens

$199
Wide maximum Has a lower max f/stop
Compare the 18-50mm f/2.8-4.5 DC OS HSM Canon-ef vs the 17-50mm f/2.8 XR Di II LD Canon-ef
Compare the 18-50mm f/2.8-4.5 DC OS HSM Canon-ef vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef

Tamron 17-50mm f/2.8 XR Di II LD Canon-ef 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
Focus motor Has a silent focus motor
Lowest price More expensive
Zoom range Slightly less zoom
Compare the EF 16-35mm f/2.8L II USM vs the 17-50mm f/2.8 XR Di II LD Canon-ef

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
Compare the EF-S 17-85mm f/4-5.6 IS USM vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef
Sigma 30mm f/1.4 EX DC HSM Canon-ef

Sigma 30mm f/1.4 EX DC HSM Canon-ef

Low light lens

$499
Prime lens Is a prime lens
Aperture Significantly wider aperture
Image stabilization No image stabilization
Zoom range Less zoom
Compare the 30mm f/1.4 EX DC HSM Canon-ef vs the 17-70mm f/2.8-4 DC Macro OS HSM Canon-ef

discussion Which do you think is better?

Speech is free, but discussion at LensHero is moderated! Please discuss your opinion of these lenses here, and discuss feedback for LensHero at our support community.

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