differences

Reasons to consider the Sigma 10-20mm f/4-5.6 EX DC HSM

Auto focus Yes vs No
Help
More zoom 2x vs 1x
Help
2x more zoom, giving you more flexibility for photos
Sigma 10-20mm f/4-5.6 EX DC HSM Learn more about
the Sigma 10-20mm f/4-5.6 EX DC HSM

Reasons to consider the Samyang 12mm f/2 NCS CS

Much narrower aperture f/22 vs f/5.6
Help
At its narrowest, the 12mm f/2 NCS CS goes 3.9 f-stops narrower
Is a prime lens Yes vs No
Help
Prime lenses have a single focal length, they are typically sharper and have wider apertures
Significantly wider aperture f/2 vs f/4
Help
At its widest, the 12mm f/2 NCS CS captures much more light (2 f-stops)
Smaller diameter 73 mm vs 86 mm
Help
Around 20% smaller lens at the end
Shorter 58 mm vs 89 mm
Help
More than 30% shorter
Slightly lighter 255 g vs 0.5 kg
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2x lighter
Samyang 12mm f/2 NCS CS Learn more about
the Samyang 12mm f/2 NCS CS

similarities

Compared to digital camera lenses

Common Strengths Common Weaknesses
Min focal length Good wide-angle Help
10-20mm f/4-5.6 EX DC HSM10 mm
12mm f/2 NCS CS12 mm
Max focal length Poor telephoto Help
10-20mm f/4-5.6 EX DC HSM20 mm
12mm f/2 NCS CS12 mm

Compared to digital camera lenses

Common Strengths Common Weaknesses

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

Image stabilization No image stabilization Help
Risk of blur
Zoom range Poor zoom Help
10-20mm f/4-5.6 EX DC HSM2x
12mm f/2 NCS CS1x

competitors

Samyang 12mm f/2 NCS CS Competitors

Samyang 16mm f/2 ED AS UMC CS

Samyang 16mm f/2 ED AS UMC CS

Low light lens

$489

Length Longer
Fujifilm XF 16mm f/1.4 R WR

Fujifilm XF 16mm f/1.4 R WR

Low light lens

Auto focus Auto focus
Aperture Wider aperture
Wide minimum Wider aperture
Samyang 14mm f/2.8 ED AS IF UMC

Samyang 14mm f/2.8 ED AS IF UMC

Wide angle lens

$299

Length Longer

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

Canon EF-S 10-18mm f/4.5-5.6 IS STM

Canon EF-S 10-18mm f/4.5-5.6 IS STM

Wide angle lens

$224 - $279

Image stabilization Image stabilization
Wide minimum Much narrower aperture
Aperture Narrower aperture
Sigma 10-20mm f/3.5 EX DC HSM Nikon F

Sigma 10-20mm f/3.5 EX DC HSM Nikon F

Wide angle lens

$399 - $410

Wide minimum Much narrower aperture
Fixed aperture Has a constant aperture
Canon EF-S 18-55mm f/3.5-5.6 IS II

Canon EF-S 18-55mm f/3.5-5.6 IS II

Wide angle lens

$99 - $199

Image stabilization Image stabilization
Wide minimum Much narrower aperture

discussion Which do you think is better?

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