differences

Reasons to consider the Sigma 18-35mm f/1.8 DC HSM

Wider aperture f/1.8 vs f/2.8
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At its widest, the 18-35mm f/1.8 DC HSM captures much more light (1.3 f-stops)
Slightly smaller diameter 78 mm vs 84 mm
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Around 10% smaller lens at the end
Slightly cheaper $69.50 vs $298.00
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The best price we've seen is $229 cheaper (4.3x less)
Sigma 18-35mm f/1.8 DC HSM Learn more about
the Sigma 18-35mm f/1.8 DC HSM

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

Image stabilization Sigma OS vs None
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Helps eliminate blur caused by small camera movements
Narrower aperture f/22 vs f/16
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At its narrowest, the 17-50mm f/2.8 EX DC OS HSM Nikon F goes 0.9 f-stops narrower
Shorter 91 mm vs 121 mm
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More than 20% shorter
More zoom 2.9x vs 1.9x
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More than 50% more zoom, giving you more flexibility for photos
Slightly lighter 0.6 kg vs 0.8 kg
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More than 30% lighter
Slightly better telephoto 50 mm vs 35 mm
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More than 40% more reach, less perspective distortion
Sigma 17-50mm f/2.8 EX DC OS HSM Nikon F Learn more about
the Sigma 17-50mm f/2.8 EX DC OS HSM Nikon F

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

competitors

Sigma 18-35mm f/1.8 DC HSM Competitors

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

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

Wide angle lens

$738 - $799

Image stabilization Image stabilization
Wide minimum Narrower aperture
Aperture Narrower aperture
Canon EF 24-70mm f/2.8L II USM

Canon EF 24-70mm f/2.8L II USM

Wide angle lens

$1,568 - $1,699

Wide minimum Narrower aperture
Zoom range More zoom
Lowest price More expensive
Placeholder

Nikon Nikkor AF-S DX 16-80mm f/2.8-4E ED VR

Wide angle lens

$829 - $1,067

Image stabilization Image stabilization
Zoom range More zoom
Fixed aperture Has a variable aperture

Sigma 17-50mm f/2.8 EX DC OS HSM Nikon F Competitors

Samyang 16mm f/2 ED AS UMC CS Nikon F

Samyang 16mm f/2 ED AS UMC CS Nikon F

Low light lens

$458

Prime lens Is a prime lens
Aperture Wider aperture
Auto focus Auto focus
Tamron 17-50mm f/2.8 XR Di-II LD [IF] Nikon F

Tamron 17-50mm f/2.8 XR Di-II LD [IF] Nikon F

Wide angle lens

$299

Wide minimum Significantly narrower aperture
Diameter Smaller diameter
Image stabilization No image stabilization
Canon EF-S 18-135mm f/3.5-5.6 IS

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

Travel lens

$328 - $400

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

discussion Which do you think is better?

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