differences

Reasons to consider the Tamron 17-50mm f/2.8 XR Di II LD Canon EF

Significantly narrower aperture f/32 vs f/22
Help
At its narrowest, the 17-50mm f/2.8 XR Di II LD Canon EF goes 1.1 f-stops narrower
Smaller diameter 74 mm vs 84 mm
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More than 10% smaller lens at the end
Slightly shorter 81 mm vs 91 mm
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More than 10% shorter
Slightly lighter 430 g vs 0.6 kg
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More than 20% lighter
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 17-50mm f/2.8 EX DC OS HSM Canon EF

Image stabilization Sigma OS vs None
Help
Helps eliminate blur caused by small camera movements
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

similarities

Compared to digital camera lenses

Common Strengths Common Weaknesses
Fixed aperture Constant aperture lenses Help
The same maximum aperture at all focal lengths
Auto focus Auto focus Help
Easier to use
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses

Compared to digital camera lenses

Common Strengths Common Weaknesses
Wide minimum Wide aperture Help
17-50mm f/2.8 XR Di II LD Canon EFf/32
17-50mm f/2.8 EX DC OS HSM Canon EFf/22

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

competitors

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

Canon 18-55mm f/3.5-5.6 IS STM

Canon 18-55mm f/3.5-5.6 IS STM

Wide angle lens

$199 - $1,130

Image stabilization Better image stabilization
Diameter Smaller diameter
Fixed aperture Has a variable aperture
Canon EF 50mm f/1.8 II

Canon EF 50mm f/1.8 II

Low light lens

$60

Prime lens Is a prime lens
Aperture Wider aperture
Image stabilization No image stabilization
Canon EF 16-35mm f/2.8L II USM

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

Wide angle lens

$1,299

Image stabilization No image stabilization

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

Tamron 18-200mm f/3.5-6.3 XR Di-II LD Macro Canon EF

Tamron 18-200mm f/3.5-6.3 XR Di-II LD Macro Canon EF

Travel lens

$185 - $199

Zoom range Much more zoom
Max focal length Better telephoto
Wide minimum Much wider aperture
Canon EF-S 18-135mm f/3.5-5.6 IS

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

Travel lens

$310 - $400

Image stabilization Image stabilization
Zoom range Significantly more zoom
Fixed aperture Has a variable aperture

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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