vs

differences

Reasons to consider the Sigma 17-50mm f/2.8 EX DC OS HSM Canon-ef

Has a consant aperture Yes vs No
Help
Constant aperture lenses offer the same aperture at all focal lengths
Wider aperture f/2.8 vs f/3.5
Help
At its widest, the 17-50mm f/2.8 EX DC OS HSM Canon-ef captures slightly more light, 0.6 f-stops
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-S 15-85mm f/3.5-5.6 IS USM

Better image stabilization Canon IS vs Sigma OS
Help
Less risk of blur
More zoom 5.7x vs 2.9x
Help
More than 90% more zoom, giving you more flexibility for photos
Slightly better telephoto 85 mm vs 50 mm
Help
70% more reach, less perspective distortion
Canon EF-S 15-85mm f/3.5-5.6 IS USM Learn more about
the Canon EF-S 15-85mm f/3.5-5.6 IS USM

similarities

Compared to lenses

Common Strengths Common Weaknesses
Focus motor Silent focus motor Help
17-50mm f/2.8 EX DC OS HSM Canon-ef:Sigma HSM
EF-S 15-85mm f/3.5-5.6 IS USM:Canon USM
Image stabilization Good image stabilization Help
17-50mm f/2.8 EX DC OS HSM Canon-ef:Sigma OS
EF-S 15-85mm f/3.5-5.6 IS USM:Canon IS
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 17-55mm f/2.8 IS USM

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

Wide angle lens

$1,059

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

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

Fisheye lens

$1,699

Fisheye Is a fisheye lens
Image stabilization Doesn't have image stabilization
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

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

Aperture Has a narrower aperture
Focus motor Lacks a silent focus motor
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

Wide maximum Has a higher max f/stop
Aperture Has a narrower 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

$499 - $500

Zoom range Has slightly large zoom range
Aperture Has a narrower aperture
Focus motor Lacks a silent focus motor
Canon EF 24-70mm f/2.8L USM

Canon EF 24-70mm f/2.8L USM

Wide angle lens

$1,280

Image stabilization Doesn't have image stabilization

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

Advantages

Disadvantages

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 Significantly narrower aperture
Weight Slightly lighter
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
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
Tamron SP 17-50mm f/2.8 XR Di-II VC LD Nikon-f

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

Wide angle lens

$649

Wide maximum Significantly narrower aperture
Focus motor Doesn't have a silent focus motor

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

Advantages

Disadvantages

No significant competitors found that are specific to the Canon EF-S 15-85mm f/3.5-5.6 IS USM.

discussion Which do you think is better?

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