Sigma
15mm f/2.8 EX DG Nikon-f
 vs
Olympus Zuiko
9-18mm f/4-5.6 ED

vs

differences

Reasons to consider the Sigma 15mm f/2.8 EX DG Nikon-f
Fisheye lens Yes vs No
Help
 Fisheye lenses take extremely wide 'circular' looking images
Is a prime lens Yes vs No
Help
 Prime lenses have a single focal length, they are typically sharper and have wider apertures
Wider aperture f/2.8 vs f/4
Help
 At its widest, the 15mm f/2.8 EX DG Nikon-f captures slightly more light, 1 f-stop
More magnification 1:3.8 (0.3x) vs 1:8 (0.1x)
Help
 Take macro shots with subjects more than 2x larger in your photo
Sigma 15mm f/2.8 EX DG Nikon-f Learn more about
the Sigma 15mm f/2.8 EX DG Nikon-f

Reasons to consider the Olympus 9-18mm f/4-5.6 ED

More zoom 2x vs 1x
Help
 2x more zoom, giving you more flexibility for photos
Olympus Zuiko 9-18mm f/4-5.6 ED Learn more about
the Olympus 9-18mm f/4-5.6 ED

similarities

Compared to lenses

Common Strengths Common Weaknesses
Min focal length Good wide-angle Help
15mm f/2.8 EX DG Nikon-f:15 mm
9-18mm f/4-5.6 ED :9 mm
Max focal length Poor telephoto Help
15mm f/2.8 EX DG Nikon-f:15 mm
9-18mm f/4-5.6 ED :18 mm
Focus motor No silent focus motor Help
Louder and slower

competitors

Shared Competitors

Advantages

Disadvantages
Sigma 10mm f/2.8 EX DC HSM Nikon-f

Sigma 10mm f/2.8 EX DC HSM Nikon-f

Fisheye lens

$649
Focus motor Has a silent focus motor
Compare the 10mm f/2.8 EX DC HSM Nikon-f vs the 15mm f/2.8 EX DG Nikon-f
Compare the 10mm f/2.8 EX DC HSM Nikon-f vs the Zuiko 9-18mm f/4-5.6 ED
Olympus 11-22mm f/2.8-3.5 ED

Olympus 11-22mm f/2.8-3.5 ED

Wide angle lens

$799
Wide maximum Has a lower max f/stop
Compare the 11-22mm f/2.8-3.5 ED vs the 15mm f/2.8 EX DG Nikon-f
Compare the 11-22mm f/2.8-3.5 ED vs the Zuiko 9-18mm f/4-5.6 ED
Nikon Nikkor 14mm f/2.8D ED

Nikon Nikkor 14mm f/2.8D ED

Fisheye lens

$1,479
Compare the Nikkor 14mm f/2.8D ED vs the 15mm f/2.8 EX DG Nikon-f
Compare the Nikkor 14mm f/2.8D ED vs the Zuiko 9-18mm f/4-5.6 ED
Nikon Nikkor 10-24mm f/3.5-4.5G ED AF-S DX

Nikon Nikkor 10-24mm f/3.5-4.5G ED AF-S DX

Wide angle lens

$938
Focus motor Has a silent focus motor
Aperture Has a narrower aperture
Wide maximum Has a lower max f/stop
Compare the Nikkor 10-24mm f/3.5-4.5G ED AF-S DX vs the 15mm f/2.8 EX DG Nikon-f
Compare the Nikkor 10-24mm f/3.5-4.5G ED AF-S DX vs the Zuiko 9-18mm f/4-5.6 ED

Sigma 15mm f/2.8 EX DG Nikon-f Competitors

Advantages

Disadvantages
Nikon Nikkor 10.5mm f/2.8G ED DX

Nikon Nikkor 10.5mm f/2.8G ED DX

Fisheye lens

$649
Magnification Slightly less magnification
Compare the Nikkor 10.5mm f/2.8G ED DX vs the 15mm f/2.8 EX DG Nikon-f
Tokina AT-X 107 DX 10-17mm f/3.5-4.5 Nikon-f

Tokina AT-X 107 DX 10-17mm f/3.5-4.5 Nikon-f

Fisheye lens

$619
Zoom range Slightly more zoom
Prime lens Is a zoom lens
Aperture Narrower aperture
Compare the AT-X 107 DX 10-17mm f/3.5-4.5 Nikon-f vs the 15mm f/2.8 EX DG Nikon-f
Tamron 14mm f/2.8 IF Nikon-f

Tamron 14mm f/2.8 IF Nikon-f

Wide angle lens

$799
Fisheye Not a fisheye
Magnification Less magnification
Compare the 14mm f/2.8 IF Nikon-f vs the 15mm f/2.8 EX DG Nikon-f
Samyang 8mm f/2.8 Samsung-nx

Samyang 8mm f/2.8 Samsung-nx

Fisheye lens

$349
Lowest price Slightly cheaper
Compare the 8mm f/2.8 Samsung-nx vs the 15mm f/2.8 EX DG Nikon-f

Olympus Zuiko 9-18mm f/4-5.6 ED Competitors

Advantages

Disadvantages
Panasonic Lumix G Vario 7-14mm f/4

Panasonic Lumix G Vario 7-14mm f/4

Wide angle lens

$959
Fixed aperture Has a consant aperture
Magnification Slightly less magnification
Lowest price Slightly more expensive
Compare the Lumix G Vario 7-14mm f/4 vs the Zuiko 9-18mm f/4-5.6 ED
Olympus Zuiko M. ED 12mm f/2

Olympus Zuiko M. ED 12mm f/2

Low light lens

$799
Prime lens Is a prime lens
Aperture Significantly wider aperture
Zoom range Less zoom
Magnification Slightly less magnification
Compare the Zuiko M. ED 12mm f/2 vs the Zuiko 9-18mm f/4-5.6 ED
Sigma 10-20mm f/4-5.6 EX DC HSM Four-thirds

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

Wide angle lens

$479
Focus motor Has a silent focus motor
Compare the 10-20mm f/4-5.6 EX DC HSM Four-thirds vs the Zuiko 9-18mm f/4-5.6 ED
Panasonic Lumix G 14mm f/2.5

Panasonic Lumix G 14mm f/2.5

Low light lens

$325
Prime lens Is a prime lens
Aperture Significantly wider aperture
Zoom range Less zoom
Compare the Lumix G 14mm f/2.5 vs the Zuiko 9-18mm f/4-5.6 ED
Canon EF-S 10-22mm f/3.5-4.5 USM

Canon EF-S 10-22mm f/3.5-4.5 USM

Wide angle lens

$759
Focus motor Has a silent focus motor
Wide maximum Narrower aperture
Length Slightly longer
Compare the EF-S 10-22mm f/3.5-4.5 USM vs the Zuiko 9-18mm f/4-5.6 ED

discussion Which do you think is better?

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