differences

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

Wider aperture f/2.8 vs f/3.5
Help
At its widest, the 17-70mm f/2.8-4 DC Macro OS HSM Canon EF captures slightly more light (0.6 f-stops)
Slightly shorter 82 mm vs 101 mm
Help
Around 20% shorter
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-S 18-135mm f/3.5-5.6 IS

Much narrower aperture f/22 vs f/4
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At its narrowest, the EF-S 18-135mm f/3.5-5.6 IS goes 4.9 f-stops narrower
More zoom 7.5x vs 4.1x
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More than 80% more zoom, giving you more flexibility for photos
Better image stabilization Canon IS vs Sigma OS
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Less risk of blur
Better telephoto 135 mm vs 70 mm
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More than 90% more reach, less perspective distortion
Slightly smaller diameter 75 mm vs 79 mm
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Around 10% smaller lens at the end
Canon EF-S 18-135mm f/3.5-5.6 IS Learn more about
the Canon EF-S 18-135mm f/3.5-5.6 IS

similarities

Compared to digital camera lenses

Common Strengths Common Weaknesses
Image stabilization Good image stabilization Help
17-70mm f/2.8-4 DC Macro OS HSM Canon EFSigma OS
EF-S 18-135mm f/3.5-5.6 ISCanon IS
Auto focus Auto focus Help
Easier to use
Zoom range Great zoom Help
17-70mm f/2.8-4 DC Macro OS HSM Canon EF4.1x
EF-S 18-135mm f/3.5-5.6 IS7.5x
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses
Fixed aperture Both are variable aperture lenses Help
Narrower aperture at longer focal lengths

Compared to digital camera 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

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

Canon EF 28-135mm f/3.5-5.6 IS USM

Canon EF 28-135mm f/3.5-5.6 IS USM

Travel lens

$589

Zoom range Less zoom
Canon EF-S 17-85mm f/4-5.6 IS USM

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

Travel lens

$299 - $429

Length Slightly shorter
Zoom range Less zoom
Canon EF 70-300mm f/4-5.6 IS USM

Canon EF 70-300mm f/4-5.6 IS USM

Wildlife lens

$377 - $395

Wide minimum Significantly narrower aperture
Max focal length Better telephoto
Zoom range Less zoom

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

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

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

Travel lens

$299 - $429

Wide minimum Much narrower aperture
Image stabilization Better image stabilization
Aperture Narrower 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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