vs

differences

Reasons to consider the Sigma 15mm f/2.8 EX DG Canon-ef

Auto focus Yes vs No
Help
Wider aperture f/2.8 vs f/3.5
Help
At its widest, the 15mm f/2.8 EX DG Canon-ef captures slightly more light, 0.6 f-stops
Sigma 15mm f/2.8 EX DG Canon-ef Learn more about
the Sigma 15mm f/2.8 EX DG Canon-ef

Reasons to consider the Rokinon 8mm f/3.5 Nikon-f

Slightly cheaper $249.95 vs $609.00
Help
The best price we've seen is $359 cheaper (2.4x less)
Rokinon 8mm f/3.5 Nikon-f Learn more about
the Rokinon 8mm f/3.5 Nikon-f

similarities

Compared to lenses

Common Strengths Common Weaknesses
Fisheye Both are fisheye lenses Help
Extremely wide circular images
Prime lens Fixed focal length prime lenses Help
Typically very sharp
Min focal length Good wide-angle Help
15mm f/2.8 EX DG Canon-ef:15 mm
8mm f/3.5 Nikon-f:8 mm
Max focal length Poor telephoto Help
15mm f/2.8 EX DG Canon-ef:15 mm
8mm f/3.5 Nikon-f:8 mm
Focus motor No silent focus motor Help
Louder and slower
Zoom range Poor zoom Help
1x

Compared to fisheye 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 15mm f/2.8

Canon EF 15mm f/2.8

Fisheye lens

$646

Rokinon 14mm f/2.8 IF ED UMC Canon-ef

Rokinon 14mm f/2.8 IF ED UMC Canon-ef

Wide angle lens

$349

Fisheye Is not a fisheye lens
Sigma 10mm f/2.8 EX DC HSM Canon-ef

Sigma 10mm f/2.8 EX DC HSM Canon-ef

Fisheye lens

$649

Focus motor Has a silent focus motor
Samyang 8mm f/2.8 Fish-eye Samsung-nx

Samyang 8mm f/2.8 Fish-eye Samsung-nx

Wide angle lens

$349

Fisheye Is not a fisheye lens
Canon EF 8-15mm f/4L USM

Canon EF 8-15mm f/4L USM

Fisheye lens

$1,349

Focus motor Has a silent focus motor
Aperture Has a narrower aperture
Prime lens Is a zoom lens
Nikon Nikkor 16mm f/2.8D

Nikon Nikkor 16mm f/2.8D

Fisheye lens

$750

Magnification Has worse macro
Zeiss Distagon  T* 18mm f/3.5 ZE Canon-ef

Zeiss Distagon T* 18mm f/3.5 ZE Canon-ef

Wide angle lens

$1,395

Aperture Has a narrower aperture
Magnification Has worse macro

Sigma 15mm f/2.8 EX DG Canon-ef Competitors

Advantages

Disadvantages

Canon EF 14mm f/2.8L II USM

Canon EF 14mm f/2.8L II USM

Fisheye lens

$2,159

Focus motor Has a silent focus motor
Lowest price More expensive
Magnification Less magnification

Rokinon 8mm f/3.5 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

Auto focus Auto focus
Aperture Wider aperture
Lowest price Slightly more expensive
Samyang 8mm f/2.8 Samsung-nx

Samyang 8mm f/2.8 Samsung-nx

Fisheye lens

$349

Auto focus Auto focus
Aperture Wider aperture
Samyang 7.5mm f/3.5 UMC MFT

Samyang 7.5mm f/3.5 UMC MFT

Fisheye lens

$296

Auto focus Auto focus
Weight Slightly lighter

discussion Which do you think is better?

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