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
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
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 18-50mm f/2.8-4.5 DC 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
Slightly cheaper $199.00 vs $459.00
Help
The best price we've seen is $260 cheaper (2.3x less)
Sigma 18-50mm f/2.8-4.5 DC OS HSM Canon-ef Learn more about
the Sigma 18-50mm f/2.8-4.5 DC 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
Max focal length Poor telephoto Help
50 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-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 Has better image stabilization
Aperture Has a narrower aperture
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

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

Sigma 10-20mm f/4-5.6 EX DC HSM Canon-ef

Sigma 10-20mm f/4-5.6 EX DC HSM Canon-ef

Wide angle lens

$479

Aperture Has a narrower aperture
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
Canon EF 50mm f/1.8 II

Canon EF 50mm f/1.8 II

Low light lens

$98 - $125

Aperture Has a wider aperture
Prime lens Is a fixed focal length prime lens
Zoom range Has slightly smaller zoom range
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

Max focal length Has a slightly shorter telephoto lens
Image stabilization Has better image stabilization
Aperture Has a narrower aperture

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

Advantages

Disadvantages

Canon EF 17-40mm f/4L USM

Canon EF 17-40mm f/4L USM

Wide angle lens

$739

Focus motor Has a silent focus motor
Magnification Slightly more magnification
Wide maximum Significantly wider aperture
Aperture Narrower aperture
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 Fisheye lens
Focus motor Has a silent focus motor
Lowest price More expensive
Zoom range Slightly less zoom

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

Advantages

Disadvantages

Sigma 28-300mm f/3.5-6.3 DG IF Macro Canon-ef

Sigma 28-300mm f/3.5-6.3 DG IF Macro Canon-ef

Travel lens

$299

Zoom range Much more zoom
Max focal length Significantly better telephoto
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Canon-ef

Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Canon-ef

Travel lens

$399

Zoom range Much more zoom
Max focal length Significantly better telephoto
Aperture Narrower aperture

discussion Which do you think is better?

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